TY  - JOUR
AU  - Alqat, Aboalqasim
AU  - Gebrel, Zohra
AU  - Kusigerski, Vladan
AU  - Spasojević, Vojislav
AU  - Mihalik, Marian
AU  - Mihalik, Matus
AU  - Blanuša, Jovan
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5361
AB  - A new synthesis route for obtaining a single-phase hexagonal YMnO3 was developed, based on the annealing of the amorphous precursor powder obtained by the glycine-nitrate combustion method. The process was monitored by XRD as well as by magnetic and heat capacity measurements. The analysis of these data shows that precursor powder undergoes a gradual phase transformation that depends on the annealing temperature. The metastable orthorhombic YMnO3 phase is the first to appear at temperatures below 700 degrees C, while a mixture of ortho- and hexa-phases was found to exist within the 700-900 degrees C range. An almost complete conversion to hexaphase occurs at 900-1000 degrees C, but to obtain the pure, well crystallized h-YMnO3 phase an annealing temperature of 1300 degrees C was necessary. The synthesis method applied in this work has been proved to be more convenient for obtaining single-phase h-YMnO3 than by a solid state reaction. In addition, it is capable of producing sample free of parasitic phases that are often present in specimens obtained by other synthesis methods. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
T2  - Ceramics International
T1  - Synthesis of hexagonal YMnO3 from precursor obtained by the glycine-nitrate process
VL  - 39
IS  - 3
SP  - 3183
EP  - 3188
DO  - 10.1016/j.ceramint.2012.10.002
ER  - 

@article{
author = "Alqat, Aboalqasim and Gebrel, Zohra and Kusigerski, Vladan and Spasojević, Vojislav and Mihalik, Marian and Mihalik, Matus and Blanuša, Jovan",
year = "2013",
abstract = "A new synthesis route for obtaining a single-phase hexagonal YMnO3 was developed, based on the annealing of the amorphous precursor powder obtained by the glycine-nitrate combustion method. The process was monitored by XRD as well as by magnetic and heat capacity measurements. The analysis of these data shows that precursor powder undergoes a gradual phase transformation that depends on the annealing temperature. The metastable orthorhombic YMnO3 phase is the first to appear at temperatures below 700 degrees C, while a mixture of ortho- and hexa-phases was found to exist within the 700-900 degrees C range. An almost complete conversion to hexaphase occurs at 900-1000 degrees C, but to obtain the pure, well crystallized h-YMnO3 phase an annealing temperature of 1300 degrees C was necessary. The synthesis method applied in this work has been proved to be more convenient for obtaining single-phase h-YMnO3 than by a solid state reaction. In addition, it is capable of producing sample free of parasitic phases that are often present in specimens obtained by other synthesis methods. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
journal = "Ceramics International",
title = "Synthesis of hexagonal YMnO3 from precursor obtained by the glycine-nitrate process",
volume = "39",
number = "3",
pages = "3183-3188",
doi = "10.1016/j.ceramint.2012.10.002"
}

Alqat, A., Gebrel, Z., Kusigerski, V., Spasojević, V., Mihalik, M., Mihalik, M.,& Blanuša, J.. (2013). Synthesis of hexagonal YMnO3 from precursor obtained by the glycine-nitrate process. in Ceramics International, 39(3), 3183-3188.
https://doi.org/10.1016/j.ceramint.2012.10.002

Alqat A, Gebrel Z, Kusigerski V, Spasojević V, Mihalik M, Mihalik M, Blanuša J. Synthesis of hexagonal YMnO3 from precursor obtained by the glycine-nitrate process. in Ceramics International. 2013;39(3):3183-3188.
doi:10.1016/j.ceramint.2012.10.002 .

Alqat, Aboalqasim, Gebrel, Zohra, Kusigerski, Vladan, Spasojević, Vojislav, Mihalik, Marian, Mihalik, Matus, Blanuša, Jovan, "Synthesis of hexagonal YMnO3 from precursor obtained by the glycine-nitrate process" in Ceramics International, 39, no. 3 (2013):3183-3188,
https://doi.org/10.1016/j.ceramint.2012.10.002 . .

TY  - JOUR
AU  - Alqat, Aboalqasim
AU  - Gebrel, Zohra
AU  - Spasojević, Vojislav
AU  - Kusigerski, Vladan
AU  - Bošković, Snežana B.
AU  - Blanuša, Jovan
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5265
AB  - The electron-doped magnetic nanoparticles of Ca1-xYxMnO3 (x = 0, 0.05, 0.10, 0.15, 0.20, and 0.30) manganite with an average particle size of 50 nm are analyzed and discussed in relation to their bulk counterparts. Nanoparticle samples show dominant anti-ferromagnetic ordering with a significant increase of coercivity, with the maximum value of 0.9 T for x = 0. Particle size reduction in Ca1-xYxMnO3 retains the bulk-like magnetic behavior of samples having up to 15% of Y3+, with the small ferromagnetic contribution from disordered surface spins. Suppression of charge ordering state and enhancement of saturation magnetization were found in samples with higher Y3+ concentration (x = 0.2, 0.3), indicating high ferromagnetic contribution in these samples.
T2  - Nuclear technology and radiation protection
T1  - Influence of the Particle Size Reduction on Magnetic Properties of Electron-Doped Ca1-Xyxmno3
VL  - 27
IS  - 4
SP  - 351
EP  - 354
DO  - 10.2298/NTRP1204351A
ER  - 

@article{
author = "Alqat, Aboalqasim and Gebrel, Zohra and Spasojević, Vojislav and Kusigerski, Vladan and Bošković, Snežana B. and Blanuša, Jovan",
year = "2012",
abstract = "The electron-doped magnetic nanoparticles of Ca1-xYxMnO3 (x = 0, 0.05, 0.10, 0.15, 0.20, and 0.30) manganite with an average particle size of 50 nm are analyzed and discussed in relation to their bulk counterparts. Nanoparticle samples show dominant anti-ferromagnetic ordering with a significant increase of coercivity, with the maximum value of 0.9 T for x = 0. Particle size reduction in Ca1-xYxMnO3 retains the bulk-like magnetic behavior of samples having up to 15% of Y3+, with the small ferromagnetic contribution from disordered surface spins. Suppression of charge ordering state and enhancement of saturation magnetization were found in samples with higher Y3+ concentration (x = 0.2, 0.3), indicating high ferromagnetic contribution in these samples.",
journal = "Nuclear technology and radiation protection",
title = "Influence of the Particle Size Reduction on Magnetic Properties of Electron-Doped Ca1-Xyxmno3",
volume = "27",
number = "4",
pages = "351-354",
doi = "10.2298/NTRP1204351A"
}

Alqat, A., Gebrel, Z., Spasojević, V., Kusigerski, V., Bošković, S. B.,& Blanuša, J.. (2012). Influence of the Particle Size Reduction on Magnetic Properties of Electron-Doped Ca1-Xyxmno3. in Nuclear technology and radiation protection, 27(4), 351-354.
https://doi.org/10.2298/NTRP1204351A

Alqat A, Gebrel Z, Spasojević V, Kusigerski V, Bošković SB, Blanuša J. Influence of the Particle Size Reduction on Magnetic Properties of Electron-Doped Ca1-Xyxmno3. in Nuclear technology and radiation protection. 2012;27(4):351-354.
doi:10.2298/NTRP1204351A .

Alqat, Aboalqasim, Gebrel, Zohra, Spasojević, Vojislav, Kusigerski, Vladan, Bošković, Snežana B., Blanuša, Jovan, "Influence of the Particle Size Reduction on Magnetic Properties of Electron-Doped Ca1-Xyxmno3" in Nuclear technology and radiation protection, 27, no. 4 (2012):351-354,
https://doi.org/10.2298/NTRP1204351A . .