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Experimental Investigation of Octahedral Tilting and Related Effects of Ca1-xGdxMnO3 (x = 0.05, 0.1, 0.15, 0.2) Compound

Rosić, Milena; Čebela, Maria; Labus, Nebojša

(University of Belgrade : Faculty of Physical Chemistry, 2022)

TY  - CONF
AU  - Rosić, Milena
AU  - Čebela, Maria
AU  - Labus, Nebojša
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11516
AB  - Nanometric size Ca1-xGdxMnO3 (x = 0.05, 0.1, 0.15, 0.2) powder particles with perovskite-type structure were obtained by applying a modified glycine-nitrate procedure. [1, 2] All samples were investigated by X-ray diffraction (XRD), Infrared (IR) spectroscopy and EPR (electron paramagnetic resonance) measurements. In the perovskites with space group Pnma, octahedral tilting is most common and it is of great interest for geologists and materials science. It was experimentally observed how the amount of gadolinium dopants affects on the Mn-O bonds angles and distances, MnO6 octahedral tilting, the deformation due to the presence of Jahn-Teller distortion around the Mn3+ cation and relation between the structural and magnetic behavior. [3] The infrared reflection spectra of Ca1-xGdxMnO3 samples confirmed XRD results that Ca1-xGdxMnO3 nanopowders are of Pnma-1 structure and that the octahedral tilting is increased with Gd doping. The EPR spectra are in agreement with the expectation that EPR linewidth depend of Mn-O-Mn angle and that small octahedral tilting brought only a small change of the EPR linewidth.
PB  - University of Belgrade : Faculty of Physical Chemistry
C3  - COIN 2022 : Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 : program and book of abstracts; June 1-2; Belgrade
T1  - Experimental Investigation of Octahedral Tilting and Related Effects of Ca1-xGdxMnO3 (x = 0.05, 0.1, 0.15, 0.2) Compound
SP  - 44
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11516
ER  - 
@conference{
author = "Rosić, Milena and Čebela, Maria and Labus, Nebojša",
year = "2022",
abstract = "Nanometric size Ca1-xGdxMnO3 (x = 0.05, 0.1, 0.15, 0.2) powder particles with perovskite-type structure were obtained by applying a modified glycine-nitrate procedure. [1, 2] All samples were investigated by X-ray diffraction (XRD), Infrared (IR) spectroscopy and EPR (electron paramagnetic resonance) measurements. In the perovskites with space group Pnma, octahedral tilting is most common and it is of great interest for geologists and materials science. It was experimentally observed how the amount of gadolinium dopants affects on the Mn-O bonds angles and distances, MnO6 octahedral tilting, the deformation due to the presence of Jahn-Teller distortion around the Mn3+ cation and relation between the structural and magnetic behavior. [3] The infrared reflection spectra of Ca1-xGdxMnO3 samples confirmed XRD results that Ca1-xGdxMnO3 nanopowders are of Pnma-1 structure and that the octahedral tilting is increased with Gd doping. The EPR spectra are in agreement with the expectation that EPR linewidth depend of Mn-O-Mn angle and that small octahedral tilting brought only a small change of the EPR linewidth.",
publisher = "University of Belgrade : Faculty of Physical Chemistry",
journal = "COIN 2022 : Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 : program and book of abstracts; June 1-2; Belgrade",
title = "Experimental Investigation of Octahedral Tilting and Related Effects of Ca1-xGdxMnO3 (x = 0.05, 0.1, 0.15, 0.2) Compound",
pages = "44",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11516"
}
Rosić, M., Čebela, M.,& Labus, N.. (2022). Experimental Investigation of Octahedral Tilting and Related Effects of Ca1-xGdxMnO3 (x = 0.05, 0.1, 0.15, 0.2) Compound. in COIN 2022 : Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 : program and book of abstracts; June 1-2; Belgrade
University of Belgrade : Faculty of Physical Chemistry., 44.
https://hdl.handle.net/21.15107/rcub_vinar_11516
Rosić M, Čebela M, Labus N. Experimental Investigation of Octahedral Tilting and Related Effects of Ca1-xGdxMnO3 (x = 0.05, 0.1, 0.15, 0.2) Compound. in COIN 2022 : Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 : program and book of abstracts; June 1-2; Belgrade. 2022;:44.
https://hdl.handle.net/21.15107/rcub_vinar_11516 .
Rosić, Milena, Čebela, Maria, Labus, Nebojša, "Experimental Investigation of Octahedral Tilting and Related Effects of Ca1-xGdxMnO3 (x = 0.05, 0.1, 0.15, 0.2) Compound" in COIN 2022 : Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 : program and book of abstracts; June 1-2; Belgrade (2022):44,
https://hdl.handle.net/21.15107/rcub_vinar_11516 .

Influence of the dynamical image potential on the rainbows in ion channeling through short carbon nanotubes

Borka, Duško; Petrović, Srđan M.; Nešković, Nebojša B.; Mowbray, Duncan John; Mišković, Zoran L.

(2006)

TY  - JOUR
AU  - Borka, Duško
AU  - Petrović, Srđan M.
AU  - Nešković, Nebojša B.
AU  - Mowbray, Duncan John
AU  - Mišković, Zoran L.
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3036
AB  - We investigate the influence of the dynamic polarization of the carbon valence electrons on the angular distributions of protons channeled through short (11,9) single-wall carbon nanotubes at speeds of 3 and 5 a.u. (corresponding to the proton energies of 0.223 and 0.621 MeV), with the nanotube length varied from 0.1 to 0.3 mu m. The dynamic image force on protons is calculated by means of a two-dimensional hydrodynamic model for the nanotubes dielectric response, whereas the repulsive interaction with the nanotubes cylindrical wall is modeled by a continuum potential based on the Doyle-Turner interatomic potential. The angular distributions of channeled protons are generated by a computer simulation method using the numerical solution of the proton equations of motion in the transverse plane. Our analysis shows that the inclusion of the image interaction causes qualitative changes in the proton deflection function, giving rise to a number of rainbow maxima in the corresponding angular distribution. We propose that observations of those rainbow maxima could be used to deduce detailed information on the relevant interaction potentials, and consequently to probe the electron distribution inside carbon nanotubes.
T2  - Physical Review A
T1  - Influence of the dynamical image potential on the rainbows in ion channeling through short carbon nanotubes
VL  - 73
IS  - 6
DO  - 10.1103/PhysRevA.73.062902
ER  - 
@article{
author = "Borka, Duško and Petrović, Srđan M. and Nešković, Nebojša B. and Mowbray, Duncan John and Mišković, Zoran L.",
year = "2006",
abstract = "We investigate the influence of the dynamic polarization of the carbon valence electrons on the angular distributions of protons channeled through short (11,9) single-wall carbon nanotubes at speeds of 3 and 5 a.u. (corresponding to the proton energies of 0.223 and 0.621 MeV), with the nanotube length varied from 0.1 to 0.3 mu m. The dynamic image force on protons is calculated by means of a two-dimensional hydrodynamic model for the nanotubes dielectric response, whereas the repulsive interaction with the nanotubes cylindrical wall is modeled by a continuum potential based on the Doyle-Turner interatomic potential. The angular distributions of channeled protons are generated by a computer simulation method using the numerical solution of the proton equations of motion in the transverse plane. Our analysis shows that the inclusion of the image interaction causes qualitative changes in the proton deflection function, giving rise to a number of rainbow maxima in the corresponding angular distribution. We propose that observations of those rainbow maxima could be used to deduce detailed information on the relevant interaction potentials, and consequently to probe the electron distribution inside carbon nanotubes.",
journal = "Physical Review A",
title = "Influence of the dynamical image potential on the rainbows in ion channeling through short carbon nanotubes",
volume = "73",
number = "6",
doi = "10.1103/PhysRevA.73.062902"
}
Borka, D., Petrović, S. M., Nešković, N. B., Mowbray, D. J.,& Mišković, Z. L.. (2006). Influence of the dynamical image potential on the rainbows in ion channeling through short carbon nanotubes. in Physical Review A, 73(6).
https://doi.org/10.1103/PhysRevA.73.062902
Borka D, Petrović SM, Nešković NB, Mowbray DJ, Mišković ZL. Influence of the dynamical image potential on the rainbows in ion channeling through short carbon nanotubes. in Physical Review A. 2006;73(6).
doi:10.1103/PhysRevA.73.062902 .
Borka, Duško, Petrović, Srđan M., Nešković, Nebojša B., Mowbray, Duncan John, Mišković, Zoran L., "Influence of the dynamical image potential on the rainbows in ion channeling through short carbon nanotubes" in Physical Review A, 73, no. 6 (2006),
https://doi.org/10.1103/PhysRevA.73.062902 . .
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