TY  - CONF
AU  - Čebela, Maria
AU  - Reddy, Priyanka
AU  - Šenjug, Pavla
AU  - Barišić, Dario
AU  - Rosić, Milena
AU  - Lojpur, Vesna
AU  - Dodevski, Vladimir
AU  - Krstić, Sanja
AU  - Pajić, Damir
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11503
AB  - Iron(III) titanates are composed of earth-abundant elements and are attracting rapidly growing interest as highly promising candidates for solar-energy as well as optoelectronics applications. Fe2TiO5 is generally recognized as potential thermoelectric material. We studied the magnetic properties of pseudobrookite material Fe2TiO5 by means of Vibrating Sample Magnetometer and Superconducting Quantum Interferometer Device Magnetometer. The material was synthesized by the sol-gel method and characterized by powder x-ray diffraction. The diffractogram was refined with the help of Rietveld refinement on FullProf Suite. Temperature-dependent ZFC and FC magnetization was measured on SQUID for lower temperature down to 2 K and on VSM for higher temperatures up to 1000 K. A transition was observed at 815 K with a separation between the ZFC and FC curves. Parallelly the bifurcation in the isothermal hysteresis measurements indicates that the system exhibits dominant canted AFM (or weak FM) with a small amount of spin glass. The small value of the moment was also pointing towards the canted AFM ordering. Transmission electron microscopy (TEM) and the scanning electron microscopy (SEM) were used to determine the particle size and morphology
PB  - University of Belgrade : Institute for Multidisciplinary Research
C3  - 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade
T1  - Magnetic properties of Fe2TiO5
SP  - 73
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11503
ER  - 

@conference{
author = "Čebela, Maria and Reddy, Priyanka and Šenjug, Pavla and Barišić, Dario and Rosić, Milena and Lojpur, Vesna and Dodevski, Vladimir and Krstić, Sanja and Pajić, Damir",
year = "2022",
abstract = "Iron(III) titanates are composed of earth-abundant elements and are attracting rapidly growing interest as highly promising candidates for solar-energy as well as optoelectronics applications. Fe2TiO5 is generally recognized as potential thermoelectric material. We studied the magnetic properties of pseudobrookite material Fe2TiO5 by means of Vibrating Sample Magnetometer and Superconducting Quantum Interferometer Device Magnetometer. The material was synthesized by the sol-gel method and characterized by powder x-ray diffraction. The diffractogram was refined with the help of Rietveld refinement on FullProf Suite. Temperature-dependent ZFC and FC magnetization was measured on SQUID for lower temperature down to 2 K and on VSM for higher temperatures up to 1000 K. A transition was observed at 815 K with a separation between the ZFC and FC curves. Parallelly the bifurcation in the isothermal hysteresis measurements indicates that the system exhibits dominant canted AFM (or weak FM) with a small amount of spin glass. The small value of the moment was also pointing towards the canted AFM ordering. Transmission electron microscopy (TEM) and the scanning electron microscopy (SEM) were used to determine the particle size and morphology",
publisher = "University of Belgrade : Institute for Multidisciplinary Research",
journal = "6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade",
title = "Magnetic properties of Fe2TiO5",
pages = "73",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11503"
}

Čebela, M., Reddy, P., Šenjug, P., Barišić, D., Rosić, M., Lojpur, V., Dodevski, V., Krstić, S.,& Pajić, D.. (2022). Magnetic properties of Fe2TiO5. in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade
University of Belgrade : Institute for Multidisciplinary Research., 73.
https://hdl.handle.net/21.15107/rcub_vinar_11503

Čebela M, Reddy P, Šenjug P, Barišić D, Rosić M, Lojpur V, Dodevski V, Krstić S, Pajić D. Magnetic properties of Fe2TiO5. in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade. 2022;:73.
https://hdl.handle.net/21.15107/rcub_vinar_11503 .

Čebela, Maria, Reddy, Priyanka, Šenjug, Pavla, Barišić, Dario, Rosić, Milena, Lojpur, Vesna, Dodevski, Vladimir, Krstić, Sanja, Pajić, Damir, "Magnetic properties of Fe2TiO5" in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade (2022):73,
https://hdl.handle.net/21.15107/rcub_vinar_11503 .

TY  - CONF
AU  - Čebela, Maria
AU  - Šenjug, Pavla
AU  - Barišić, Dario
AU  - Rosić, Milena
AU  - Lojpur, Vesna
AU  - Pajić, Damir
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11504
AB  - The influence of Ag doping on the crystal structure and magnetic properties of CuO nanopowders was investigated. Nanoparticles of copper–silver oxide solid solutions with composition Cu1-xAgxO (x=0.01–0.05) were successfully produced by using self-propagating room temperature synthesis using reaction between metal nitrates and sodium hydroxide. Prepared powders were calcinated at 700 °C for 2 h. The diffraction pattern was recorded at room temperature and atmospheric pressure without of any re-heating of the sample. A fitting refinement procedure using the Rietveld method was performed which showed the incorporation of Ag3+ ions in the CuO crystal lattice, where they substitute Cu2+ ions. Magnetic behaviour of synthesized materials was investigated by SQUID magnetometer in temperature interval 2–400 K. It is known that copper(II) oxide exhibits ferroelectricity driven by magnetic order at temperature as high as 230 K [1]. Multiferroic phase is present above the first order phase transition at TN1 = 213 K and exists up to the subsequent first order phase transition TN2 = 230 K [1,2]. It was shown that disorder in the form of impurities can stabilize the ferroelectric phase [2] this was our motivation to dope CuO with Ag in order to improve further its multiferroic properties. In Cu1-xAgxO small changes of magnetic properties were observed if compared to CuO. Transmission electron microscopy (TEM) and the scanning electron microscopy (SEM) were used to determine the particle size and morphology.
PB  - University of Belgrade : Institute for Multidisciplinary Research
C3  - 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade
T1  - Effect of Ag doping on the morphological and magnetic properties of CuO nanostructures
SP  - 72
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11504
ER  - 

@conference{
author = "Čebela, Maria and Šenjug, Pavla and Barišić, Dario and Rosić, Milena and Lojpur, Vesna and Pajić, Damir",
year = "2022",
abstract = "The influence of Ag doping on the crystal structure and magnetic properties of CuO nanopowders was investigated. Nanoparticles of copper–silver oxide solid solutions with composition Cu1-xAgxO (x=0.01–0.05) were successfully produced by using self-propagating room temperature synthesis using reaction between metal nitrates and sodium hydroxide. Prepared powders were calcinated at 700 °C for 2 h. The diffraction pattern was recorded at room temperature and atmospheric pressure without of any re-heating of the sample. A fitting refinement procedure using the Rietveld method was performed which showed the incorporation of Ag3+ ions in the CuO crystal lattice, where they substitute Cu2+ ions. Magnetic behaviour of synthesized materials was investigated by SQUID magnetometer in temperature interval 2–400 K. It is known that copper(II) oxide exhibits ferroelectricity driven by magnetic order at temperature as high as 230 K [1]. Multiferroic phase is present above the first order phase transition at TN1 = 213 K and exists up to the subsequent first order phase transition TN2 = 230 K [1,2]. It was shown that disorder in the form of impurities can stabilize the ferroelectric phase [2] this was our motivation to dope CuO with Ag in order to improve further its multiferroic properties. In Cu1-xAgxO small changes of magnetic properties were observed if compared to CuO. Transmission electron microscopy (TEM) and the scanning electron microscopy (SEM) were used to determine the particle size and morphology.",
publisher = "University of Belgrade : Institute for Multidisciplinary Research",
journal = "6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade",
title = "Effect of Ag doping on the morphological and magnetic properties of CuO nanostructures",
pages = "72",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11504"
}

Čebela, M., Šenjug, P., Barišić, D., Rosić, M., Lojpur, V.,& Pajić, D.. (2022). Effect of Ag doping on the morphological and magnetic properties of CuO nanostructures. in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade
University of Belgrade : Institute for Multidisciplinary Research., 72.
https://hdl.handle.net/21.15107/rcub_vinar_11504

Čebela M, Šenjug P, Barišić D, Rosić M, Lojpur V, Pajić D. Effect of Ag doping on the morphological and magnetic properties of CuO nanostructures. in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade. 2022;:72.
https://hdl.handle.net/21.15107/rcub_vinar_11504 .

Čebela, Maria, Šenjug, Pavla, Barišić, Dario, Rosić, Milena, Lojpur, Vesna, Pajić, Damir, "Effect of Ag doping on the morphological and magnetic properties of CuO nanostructures" in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade (2022):72,
https://hdl.handle.net/21.15107/rcub_vinar_11504 .

TY  - CONF
AU  - Maletić, Dejan
AU  - Čebela, Maria
AU  - Blažeka, Damjan
AU  - Radičić, Rafaela
AU  - Šenjug, Pavla
AU  - Barišić, Dario
AU  - Pajić, Damir
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10837
AB  - Removal of organic pollutants from the waste water will bethemost challenging objective in the future. The photodegradation using the zinc oxide (ZnO)is one of the bestpromising material due to low price and high efficiency. Zinc oxide nanoparticles were synthetized by self propagatingroom temperature reaction of zincnitratewith sodium hydroxide.After reaction powder wascalcinated at 1100°C for 4 h in furnace. The diffraction patterns were recorded at room temperature and atmospheric pressure in the absence of any re-heating of the samples. The temperature dependence of magnetization was measured in the field of 1000 Oe and temperature range from 2 to 300 K using MPMS5 SQUID magnetometer. Photocatalytic properties were determined using the degradation of organic dye Methylene Blue (MB). Hg UV lap was used for irradiating the solution of MB and ZnOnanopowder. The photodegradation of MB was monitored by decreasing 664 nm peak during 120 min, after this period of time we observed 95% of reduction from the starting dye concentration. Nanopowder of ZnO show strong photocatalytic performance and can be used for further investigation and applications.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade
T1  - Structural, magnetic and photocatalytic properties of ZnO nanopowder
SP  - 78
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10837
ER  - 

@conference{
author = "Maletić, Dejan and Čebela, Maria and Blažeka, Damjan and Radičić, Rafaela and Šenjug, Pavla and Barišić, Dario and Pajić, Damir",
year = "2021",
abstract = "Removal of organic pollutants from the waste water will bethemost challenging objective in the future. The photodegradation using the zinc oxide (ZnO)is one of the bestpromising material due to low price and high efficiency. Zinc oxide nanoparticles were synthetized by self propagatingroom temperature reaction of zincnitratewith sodium hydroxide.After reaction powder wascalcinated at 1100°C for 4 h in furnace. The diffraction patterns were recorded at room temperature and atmospheric pressure in the absence of any re-heating of the samples. The temperature dependence of magnetization was measured in the field of 1000 Oe and temperature range from 2 to 300 K using MPMS5 SQUID magnetometer. Photocatalytic properties were determined using the degradation of organic dye Methylene Blue (MB). Hg UV lap was used for irradiating the solution of MB and ZnOnanopowder. The photodegradation of MB was monitored by decreasing 664 nm peak during 120 min, after this period of time we observed 95% of reduction from the starting dye concentration. Nanopowder of ZnO show strong photocatalytic performance and can be used for further investigation and applications.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade",
title = "Structural, magnetic and photocatalytic properties of ZnO nanopowder",
pages = "78",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10837"
}

Maletić, D., Čebela, M., Blažeka, D., Radičić, R., Šenjug, P., Barišić, D.,& Pajić, D.. (2021). Structural, magnetic and photocatalytic properties of ZnO nanopowder. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade
Belgrade : Serbian Ceramic Society., 78.
https://hdl.handle.net/21.15107/rcub_vinar_10837

Maletić D, Čebela M, Blažeka D, Radičić R, Šenjug P, Barišić D, Pajić D. Structural, magnetic and photocatalytic properties of ZnO nanopowder. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade. 2021;:78.
https://hdl.handle.net/21.15107/rcub_vinar_10837 .

Maletić, Dejan, Čebela, Maria, Blažeka, Damjan, Radičić, Rafaela, Šenjug, Pavla, Barišić, Dario, Pajić, Damir, "Structural, magnetic and photocatalytic properties of ZnO nanopowder" in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade (2021):78,
https://hdl.handle.net/21.15107/rcub_vinar_10837 .

TY  - CONF
AU  - Čebela, Maria
AU  - Šenjug, Pavla
AU  - Klaser, Teodoro
AU  - Skoko, Željko
AU  - Pajić, Damir
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10839
AB  - The influence of Ag doping on the crystal structure and magnetic properties of CuO nanopowders was investigated. Nanoparticles of copper–silver oxide solid solutions with composition Cu1−xAgxO(x=0.01–0.05) were successfully produced by using self–propagating room temperature synthesis using reaction between metal nitrates and sodium hydroxide. Prepared powders were calcinated at 700 °C for 2 h. The diffraction pattern was recorded at room temperature and atmospheric pressure in the absence of any re-heating of the sample. A fitting refinement procedure using the Rietveld method was performed which showed the incorporation of Ag3+ ions in the CuO crystal lattice, where they substitute Cu 2+ ions. Magnetic behaviour of synthesized materials was investigated by SQUID magnetometer in temperature interval 2-400 K. Copper(II) oxide exhibits ferroelectricity driven by magnetic order at temperature as high as 230 K [1]. Multiferroic phase is present above the first order phase transition at TN1= 213 K and exists up to the subsequent first order phase transition TN2= 230 K . It was shown that disorder in the form of impurities can stabilize the ferroelectric phase what was a motivate to dope CuO with Ag in order to improve further its multiferroic properties.InCu1-x Ag x Osmall change of magnetic properties were observed if compared to CuO.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade
T1  - Structural and magnetic properties of Ag-doped CuO nanopowders
SP  - 80
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10839
ER  - 

@conference{
author = "Čebela, Maria and Šenjug, Pavla and Klaser, Teodoro and Skoko, Željko and Pajić, Damir",
year = "2021",
abstract = "The influence of Ag doping on the crystal structure and magnetic properties of CuO nanopowders was investigated. Nanoparticles of copper–silver oxide solid solutions with composition Cu1−xAgxO(x=0.01–0.05) were successfully produced by using self–propagating room temperature synthesis using reaction between metal nitrates and sodium hydroxide. Prepared powders were calcinated at 700 °C for 2 h. The diffraction pattern was recorded at room temperature and atmospheric pressure in the absence of any re-heating of the sample. A fitting refinement procedure using the Rietveld method was performed which showed the incorporation of Ag3+ ions in the CuO crystal lattice, where they substitute Cu 2+ ions. Magnetic behaviour of synthesized materials was investigated by SQUID magnetometer in temperature interval 2-400 K. Copper(II) oxide exhibits ferroelectricity driven by magnetic order at temperature as high as 230 K [1]. Multiferroic phase is present above the first order phase transition at TN1= 213 K and exists up to the subsequent first order phase transition TN2= 230 K . It was shown that disorder in the form of impurities can stabilize the ferroelectric phase what was a motivate to dope CuO with Ag in order to improve further its multiferroic properties.InCu1-x Ag x Osmall change of magnetic properties were observed if compared to CuO.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade",
title = "Structural and magnetic properties of Ag-doped CuO nanopowders",
pages = "80",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10839"
}

Čebela, M., Šenjug, P., Klaser, T., Skoko, Ž.,& Pajić, D.. (2021). Structural and magnetic properties of Ag-doped CuO nanopowders. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade
Belgrade : Serbian Ceramic Society., 80.
https://hdl.handle.net/21.15107/rcub_vinar_10839

Čebela M, Šenjug P, Klaser T, Skoko Ž, Pajić D. Structural and magnetic properties of Ag-doped CuO nanopowders. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade. 2021;:80.
https://hdl.handle.net/21.15107/rcub_vinar_10839 .

Čebela, Maria, Šenjug, Pavla, Klaser, Teodoro, Skoko, Željko, Pajić, Damir, "Structural and magnetic properties of Ag-doped CuO nanopowders" in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade (2021):80,
https://hdl.handle.net/21.15107/rcub_vinar_10839 .

TY  - CONF
AU  - Čebela, Maria
AU  - Šenjug, Pavla
AU  - Torić, Filip
AU  - Skoko, Željko
AU  - Zagorac, Dejan
AU  - Pajić, Damir
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11495
AB  - Magnetoelectric multiferroics, showing simultaneous ferroelectric and ferromagnetic ordering, have aroused wide attention in recent years, because they offer a wide range of potential applications in data storage media, spintronics and multi-state memories. The influence of Ho doping on the crystal structure and magnetic properties of bismuth ferrite (BFO) nanopowders was investigated. BiFeO3 and Bi1-xHoxFeO3 ultrafine nanopowders were synthesized by the hydrothermal method. Here we use simple, low-cost and energy-saving hydrothermal method, which has advantages over the conventional methods. The diffraction pattern was recorded at room temperature and atmospheric pressure in the absence of any reheating of the sample. A fitting refinement procedure using the Rietveld method was performed which showed the incorporation of Ho3+ ions in the BiFeO3 crystal lattice, where they substitute Bi3+ ions. All the samples belong to R3c space group. In addition, theoretical investigation using bond valence calculations have been performed in order to mimic pure and Ho doped BiFeO3 compounds produced in the experiment. Various BFO polymorphs were investigated as function of holmium concentration and final optimization of crystal structures has been performed on ab initio level using Density Functional Theory (DFT). Magnetic behaviour of synthesized materials was investigated by SQUID magnetometer in wide temperature interval (2–800 K). Splitting between the zero-field-cooled and fieldcooled magnetization curves becomes more pronounced as the Ho concentration is increased, pointing to the development of weak ferromagnetic moment, which is usually connected with uncompensated spins or spin canting. Hysteresis loops show the same fact, attaining higher magnetization with more Ho included, and becoming wider, i.e. magnetically harder.
PB  - University of Belgrade : Institute for Multidisciplinary Research
C3  - 5CSCS : 5th Serbian Ceramic Society Conference : programme and the book of abstracts; June 11-13; Belgrade
T1  - Influence of Ho doping on structural and magnetic behaviour of multiferroic BiFeO3
SP  - 108
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11495
ER  - 

@conference{
author = "Čebela, Maria and Šenjug, Pavla and Torić, Filip and Skoko, Željko and Zagorac, Dejan and Pajić, Damir",
year = "2019",
abstract = "Magnetoelectric multiferroics, showing simultaneous ferroelectric and ferromagnetic ordering, have aroused wide attention in recent years, because they offer a wide range of potential applications in data storage media, spintronics and multi-state memories. The influence of Ho doping on the crystal structure and magnetic properties of bismuth ferrite (BFO) nanopowders was investigated. BiFeO3 and Bi1-xHoxFeO3 ultrafine nanopowders were synthesized by the hydrothermal method. Here we use simple, low-cost and energy-saving hydrothermal method, which has advantages over the conventional methods. The diffraction pattern was recorded at room temperature and atmospheric pressure in the absence of any reheating of the sample. A fitting refinement procedure using the Rietveld method was performed which showed the incorporation of Ho3+ ions in the BiFeO3 crystal lattice, where they substitute Bi3+ ions. All the samples belong to R3c space group. In addition, theoretical investigation using bond valence calculations have been performed in order to mimic pure and Ho doped BiFeO3 compounds produced in the experiment. Various BFO polymorphs were investigated as function of holmium concentration and final optimization of crystal structures has been performed on ab initio level using Density Functional Theory (DFT). Magnetic behaviour of synthesized materials was investigated by SQUID magnetometer in wide temperature interval (2–800 K). Splitting between the zero-field-cooled and fieldcooled magnetization curves becomes more pronounced as the Ho concentration is increased, pointing to the development of weak ferromagnetic moment, which is usually connected with uncompensated spins or spin canting. Hysteresis loops show the same fact, attaining higher magnetization with more Ho included, and becoming wider, i.e. magnetically harder.",
publisher = "University of Belgrade : Institute for Multidisciplinary Research",
journal = "5CSCS : 5th Serbian Ceramic Society Conference : programme and the book of abstracts; June 11-13; Belgrade",
title = "Influence of Ho doping on structural and magnetic behaviour of multiferroic BiFeO3",
pages = "108",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11495"
}

Čebela, M., Šenjug, P., Torić, F., Skoko, Ž., Zagorac, D.,& Pajić, D.. (2019). Influence of Ho doping on structural and magnetic behaviour of multiferroic BiFeO3. in 5CSCS : 5th Serbian Ceramic Society Conference : programme and the book of abstracts; June 11-13; Belgrade
University of Belgrade : Institute for Multidisciplinary Research., 108.
https://hdl.handle.net/21.15107/rcub_vinar_11495

Čebela M, Šenjug P, Torić F, Skoko Ž, Zagorac D, Pajić D. Influence of Ho doping on structural and magnetic behaviour of multiferroic BiFeO3. in 5CSCS : 5th Serbian Ceramic Society Conference : programme and the book of abstracts; June 11-13; Belgrade. 2019;:108.
https://hdl.handle.net/21.15107/rcub_vinar_11495 .

Čebela, Maria, Šenjug, Pavla, Torić, Filip, Skoko, Željko, Zagorac, Dejan, Pajić, Damir, "Influence of Ho doping on structural and magnetic behaviour of multiferroic BiFeO3" in 5CSCS : 5th Serbian Ceramic Society Conference : programme and the book of abstracts; June 11-13; Belgrade (2019):108,
https://hdl.handle.net/21.15107/rcub_vinar_11495 .

TY  - CONF
AU  - Čebela, Maria
AU  - Torić, Filip
AU  - Klaser, Teodoro
AU  - Skoko, Željko
AU  - Pajić, Damir
AU  - Šenjug, Pavla
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11525
PB  - Croatia : Ruđer Bošković Institute, Faculty of Science in Zagreb and Institute of Physics
C3  - SCIRES2019 : Solid-State Science & Research Meeting; June 27-29, Zagreb, Croatia
T1  - Structural and magnetic behaviour of Ho and Ag doped BiFeO3
SP  - 75
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11525
ER  - 

@conference{
author = "Čebela, Maria and Torić, Filip and Klaser, Teodoro and Skoko, Željko and Pajić, Damir and Šenjug, Pavla",
year = "2019",
publisher = "Croatia : Ruđer Bošković Institute, Faculty of Science in Zagreb and Institute of Physics",
journal = "SCIRES2019 : Solid-State Science & Research Meeting; June 27-29, Zagreb, Croatia",
title = "Structural and magnetic behaviour of Ho and Ag doped BiFeO3",
pages = "75",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11525"
}

Čebela, M., Torić, F., Klaser, T., Skoko, Ž., Pajić, D.,& Šenjug, P.. (2019). Structural and magnetic behaviour of Ho and Ag doped BiFeO3. in SCIRES2019 : Solid-State Science & Research Meeting; June 27-29, Zagreb, Croatia
Croatia : Ruđer Bošković Institute, Faculty of Science in Zagreb and Institute of Physics., 75.
https://hdl.handle.net/21.15107/rcub_vinar_11525

Čebela M, Torić F, Klaser T, Skoko Ž, Pajić D, Šenjug P. Structural and magnetic behaviour of Ho and Ag doped BiFeO3. in SCIRES2019 : Solid-State Science & Research Meeting; June 27-29, Zagreb, Croatia. 2019;:75.
https://hdl.handle.net/21.15107/rcub_vinar_11525 .

Čebela, Maria, Torić, Filip, Klaser, Teodoro, Skoko, Željko, Pajić, Damir, Šenjug, Pavla, "Structural and magnetic behaviour of Ho and Ag doped BiFeO3" in SCIRES2019 : Solid-State Science & Research Meeting; June 27-29, Zagreb, Croatia (2019):75,
https://hdl.handle.net/21.15107/rcub_vinar_11525 .

TY  - CONF
AU  - Šenjug, Pavla
AU  - Čebela, Maria
AU  - Torić, Filip
AU  - Klaser, Teodoro
AU  - Skoko, Željko
AU  - Pajić, Damir
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11500
AB  - Bismuth ferrite (BFO) is one of a few room temperature magneto-electric multiferroics. High ferroelectric and magnetic transition temperatures (1100 and 630 K, respectively) make it interesting for possible technological application. The problem with BFO bulk ceramic is low net magnetic moment of its ordered antiferomagnetic phase. To disturb the antiferromagnetic order and induce bigger magnetic moment, BFO is often doped with different elements, usually heavy rare earth elements or transition metal ions. In this study we have investigated magnetic behaviour of Ag doped BFO. Compounds of BiFeO3, with metal ions substituted by different percentage of silver, were synthesized using hydrothermal method. Structural characterization of synthesized samples was performed using X-ray diffraction. Magnetization of polycrystalline samples measured in a wide temperature range, from 2 to 720 K, showed that the transition temperature for all the samples is nearly the same, TN = 630 K. The development of weak ferromagnetism with doping was observed as enhanced splitting between zero field cooled (ZFC) and field cooled (FC) curves, together with increased magnetization seen also in M(H) curves. The peculiar behaviour of ZFC and FC curves expressed at lower temperatures, where the FC curve crossed the ZFC curve attaining lower values of magnetization then the ZFC curve, could be attributed to the competition of exchange interactions within and between the sublattices.
PB  - University of Belgrade : Institute for Multidisciplinary Research
C3  - 5CSCS : 5th Serbian Ceramic Society Conference : programme and the book of abstracts; June 11-13; Belgrade
T1  - Magnetic behaviour of Ag doped BiFeO3
SP  - 128
EP  - 129
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11500
ER  - 

@conference{
author = "Šenjug, Pavla and Čebela, Maria and Torić, Filip and Klaser, Teodoro and Skoko, Željko and Pajić, Damir",
year = "2019",
abstract = "Bismuth ferrite (BFO) is one of a few room temperature magneto-electric multiferroics. High ferroelectric and magnetic transition temperatures (1100 and 630 K, respectively) make it interesting for possible technological application. The problem with BFO bulk ceramic is low net magnetic moment of its ordered antiferomagnetic phase. To disturb the antiferromagnetic order and induce bigger magnetic moment, BFO is often doped with different elements, usually heavy rare earth elements or transition metal ions. In this study we have investigated magnetic behaviour of Ag doped BFO. Compounds of BiFeO3, with metal ions substituted by different percentage of silver, were synthesized using hydrothermal method. Structural characterization of synthesized samples was performed using X-ray diffraction. Magnetization of polycrystalline samples measured in a wide temperature range, from 2 to 720 K, showed that the transition temperature for all the samples is nearly the same, TN = 630 K. The development of weak ferromagnetism with doping was observed as enhanced splitting between zero field cooled (ZFC) and field cooled (FC) curves, together with increased magnetization seen also in M(H) curves. The peculiar behaviour of ZFC and FC curves expressed at lower temperatures, where the FC curve crossed the ZFC curve attaining lower values of magnetization then the ZFC curve, could be attributed to the competition of exchange interactions within and between the sublattices.",
publisher = "University of Belgrade : Institute for Multidisciplinary Research",
journal = "5CSCS : 5th Serbian Ceramic Society Conference : programme and the book of abstracts; June 11-13; Belgrade",
title = "Magnetic behaviour of Ag doped BiFeO3",
pages = "128-129",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11500"
}

Šenjug, P., Čebela, M., Torić, F., Klaser, T., Skoko, Ž.,& Pajić, D.. (2019). Magnetic behaviour of Ag doped BiFeO3. in 5CSCS : 5th Serbian Ceramic Society Conference : programme and the book of abstracts; June 11-13; Belgrade
University of Belgrade : Institute for Multidisciplinary Research., 128-129.
https://hdl.handle.net/21.15107/rcub_vinar_11500

Šenjug P, Čebela M, Torić F, Klaser T, Skoko Ž, Pajić D. Magnetic behaviour of Ag doped BiFeO3. in 5CSCS : 5th Serbian Ceramic Society Conference : programme and the book of abstracts; June 11-13; Belgrade. 2019;:128-129.
https://hdl.handle.net/21.15107/rcub_vinar_11500 .

Šenjug, Pavla, Čebela, Maria, Torić, Filip, Klaser, Teodoro, Skoko, Željko, Pajić, Damir, "Magnetic behaviour of Ag doped BiFeO3" in 5CSCS : 5th Serbian Ceramic Society Conference : programme and the book of abstracts; June 11-13; Belgrade (2019):128-129,
https://hdl.handle.net/21.15107/rcub_vinar_11500 .

TY  - CONF
AU  - Čebela, Maria
AU  - Šenjug, Pavla
AU  - Torić, Filip
AU  - Skoko, Željko
AU  - Pajić, Damir
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11498
AB  - The influence of Ag doping on the crystal structure and magnetic properties of CuO nanopowders was investigated. Nanoparticles of copper-silver oxide solid solutions with composition Cu1−xAgxO (x=0.01–0.05) were successfully produced by self–propagating room temperature synthesis using reaction between metal nitrates and sodium hydroxide. Prepared powders were calcinated at 700 °C for 2 h. The diffraction pattern was recorded at room temperature and atmospheric pressure without any re-heating of the sample. A fitting refinement procedure using the Rietveld method was performed which showed the incorporation of Ag3+ ions in the CuO crystal lattice, where they substitute Cu2+ ions. Magnetic behaviour of synthesized materials was investigated by SQUID magnetometer in temperature interval 2–400 K. It is known that copper(II) oxide exhibits ferroelectricity driven by magnetic order at temperature as high as 230 K [1]. Multiferroic phase is present above the first order phase transition at TN1 = 213 K and exists up to the subsequent first order phase transition TN2 = 230 K [1,2]. It was shown that disorder in the form of impurities can stabilize the ferroelectric phase [2]. This was our motivation to dope CuO with Ag in order to further improve its multiferroic properties. In Cu1-xAgxO small changes of magnetic properties were observed if compared to CuO.
PB  - University of Belgrade : Institute for Multidisciplinary Research
C3  - 5CSCS : 5th Serbian Ceramic Society Conference : programme and the book of abstracts; June 11-13; Belgrade
T1  - Influence of Ag doping on the crystal structure and magnetic properties of CuO nanopowders
SP  - 78
EP  - 79
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11498
ER  - 

@conference{
author = "Čebela, Maria and Šenjug, Pavla and Torić, Filip and Skoko, Željko and Pajić, Damir",
year = "2019",
abstract = "The influence of Ag doping on the crystal structure and magnetic properties of CuO nanopowders was investigated. Nanoparticles of copper-silver oxide solid solutions with composition Cu1−xAgxO (x=0.01–0.05) were successfully produced by self–propagating room temperature synthesis using reaction between metal nitrates and sodium hydroxide. Prepared powders were calcinated at 700 °C for 2 h. The diffraction pattern was recorded at room temperature and atmospheric pressure without any re-heating of the sample. A fitting refinement procedure using the Rietveld method was performed which showed the incorporation of Ag3+ ions in the CuO crystal lattice, where they substitute Cu2+ ions. Magnetic behaviour of synthesized materials was investigated by SQUID magnetometer in temperature interval 2–400 K. It is known that copper(II) oxide exhibits ferroelectricity driven by magnetic order at temperature as high as 230 K [1]. Multiferroic phase is present above the first order phase transition at TN1 = 213 K and exists up to the subsequent first order phase transition TN2 = 230 K [1,2]. It was shown that disorder in the form of impurities can stabilize the ferroelectric phase [2]. This was our motivation to dope CuO with Ag in order to further improve its multiferroic properties. In Cu1-xAgxO small changes of magnetic properties were observed if compared to CuO.",
publisher = "University of Belgrade : Institute for Multidisciplinary Research",
journal = "5CSCS : 5th Serbian Ceramic Society Conference : programme and the book of abstracts; June 11-13; Belgrade",
title = "Influence of Ag doping on the crystal structure and magnetic properties of CuO nanopowders",
pages = "78-79",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11498"
}

Čebela, M., Šenjug, P., Torić, F., Skoko, Ž.,& Pajić, D.. (2019). Influence of Ag doping on the crystal structure and magnetic properties of CuO nanopowders. in 5CSCS : 5th Serbian Ceramic Society Conference : programme and the book of abstracts; June 11-13; Belgrade
University of Belgrade : Institute for Multidisciplinary Research., 78-79.
https://hdl.handle.net/21.15107/rcub_vinar_11498

Čebela M, Šenjug P, Torić F, Skoko Ž, Pajić D. Influence of Ag doping on the crystal structure and magnetic properties of CuO nanopowders. in 5CSCS : 5th Serbian Ceramic Society Conference : programme and the book of abstracts; June 11-13; Belgrade. 2019;:78-79.
https://hdl.handle.net/21.15107/rcub_vinar_11498 .

Čebela, Maria, Šenjug, Pavla, Torić, Filip, Skoko, Željko, Pajić, Damir, "Influence of Ag doping on the crystal structure and magnetic properties of CuO nanopowders" in 5CSCS : 5th Serbian Ceramic Society Conference : programme and the book of abstracts; June 11-13; Belgrade (2019):78-79,
https://hdl.handle.net/21.15107/rcub_vinar_11498 .

TY  - CONF
AU  - Čebela, Maria
AU  - Šenjug, Pavla
AU  - Torić, Filip
AU  - Skoko, Željko
AU  - Klaser, Teodoro
AU  - Pajić, Damir
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11523
AB  - Bismuth ferrite (BiFeO3) is one of the most studied multiferroic systems mainly because of BiFeO3 material possesses both antiferromagnetic and ferroelectric properties observed at room temperature, which opens great possibilities for industrial and technological application. The influence of Ho doping on the crystal structure and magnetic properties of bismuth ferrite (BFO) nanopowders was investigated. BiFeO3 and Bi1-xHoxFeO3 ultrafine nanopowders were synthesized by the hydrothermal method. Here we use simple, low-cost and energy-saving hydrothermal method, which has advantages over the conventional methods. The diffraction pattern was recorded at room temperature and atmospheric pressure in the absence of any re-heating of the sample. A fitting refinement procedure using the Rietveld method was performed which showed the incorporation of Ho 3+ ions in the BiFeO3 crystal lattice, where they substitute Bi 3+ ions. All the samples belong to R3c space group. Magnetic behavior of synthesized materials was investigated by SQUID magnetometer in wide temperature interval (2-800 K).Temperature dependence of magnetization shows antiferromagnetic transition at TN ~ 630 K and below this temperature weak ferromagnetism is observed, which becomes enhanced with the Ho-doping
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - 17th Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts; December 5-7, Belgrade
T1  - Influence of Ho doping on magnetic properties of bismuth ferrite nanopowders
SP  - 71
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11523
ER  - 

@conference{
author = "Čebela, Maria and Šenjug, Pavla and Torić, Filip and Skoko, Željko and Klaser, Teodoro and Pajić, Damir",
year = "2018",
abstract = "Bismuth ferrite (BiFeO3) is one of the most studied multiferroic systems mainly because of BiFeO3 material possesses both antiferromagnetic and ferroelectric properties observed at room temperature, which opens great possibilities for industrial and technological application. The influence of Ho doping on the crystal structure and magnetic properties of bismuth ferrite (BFO) nanopowders was investigated. BiFeO3 and Bi1-xHoxFeO3 ultrafine nanopowders were synthesized by the hydrothermal method. Here we use simple, low-cost and energy-saving hydrothermal method, which has advantages over the conventional methods. The diffraction pattern was recorded at room temperature and atmospheric pressure in the absence of any re-heating of the sample. A fitting refinement procedure using the Rietveld method was performed which showed the incorporation of Ho 3+ ions in the BiFeO3 crystal lattice, where they substitute Bi 3+ ions. All the samples belong to R3c space group. Magnetic behavior of synthesized materials was investigated by SQUID magnetometer in wide temperature interval (2-800 K).Temperature dependence of magnetization shows antiferromagnetic transition at TN ~ 630 K and below this temperature weak ferromagnetism is observed, which becomes enhanced with the Ho-doping",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "17th Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts; December 5-7, Belgrade",
title = "Influence of Ho doping on magnetic properties of bismuth ferrite nanopowders",
pages = "71",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11523"
}

Čebela, M., Šenjug, P., Torić, F., Skoko, Ž., Klaser, T.,& Pajić, D.. (2018). Influence of Ho doping on magnetic properties of bismuth ferrite nanopowders. in 17th Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts; December 5-7, Belgrade
Belgrade : Institute of Technical Sciences of SASA., 71.
https://hdl.handle.net/21.15107/rcub_vinar_11523

Čebela M, Šenjug P, Torić F, Skoko Ž, Klaser T, Pajić D. Influence of Ho doping on magnetic properties of bismuth ferrite nanopowders. in 17th Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts; December 5-7, Belgrade. 2018;:71.
https://hdl.handle.net/21.15107/rcub_vinar_11523 .

Čebela, Maria, Šenjug, Pavla, Torić, Filip, Skoko, Željko, Klaser, Teodoro, Pajić, Damir, "Influence of Ho doping on magnetic properties of bismuth ferrite nanopowders" in 17th Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts; December 5-7, Belgrade (2018):71,
https://hdl.handle.net/21.15107/rcub_vinar_11523 .