Low-temperature ground state structure of PbTiO.sub.3./sub.

0576158 - FZÚ 2024 RIV US eng J - Článek v odborném periodiku
Laguta, Valentyn - Zagorodniy, Yu.O. - Kuzian, R. O. - Kondakova, I.V. - Chlan, V. - Řezníček, R. - Štěpánková, H. - Bohdanov, Dmytro - Hlinka, Jiří - Ramesh, R.
Low-temperature ground state structure of PbTiO₃.
Physical Review B. Roč. 107, č. 10 (2023), č. článku 104107. ISSN 2469-9950. E-ISSN 2469-9969
Grant CEP: GA ČR(CZ) GA23-05578S
Výzkumná infrastruktura: e-INFRA CZ - 90140
Institucionální podpora: RVO:68378271
Klíčová slova: ferroelectric * phase transition * electron paramagnetic resonance * nuclear magnetic resonance * first-principles calculations
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 3.7, rok: 2022
Způsob publikování: Omezený přístup
https://doi.org/10.1103/PhysRevB.107.104107

Mn4+, Cr3+, and Fe3+ electron paramagnetic resonance and 47,49Ti and 207Pb nuclear magnetic resonance (NMR) measurements are carried out in PbTiO3 single crystals at temperatures from 300 K down to 20 K. Experimental data indicate proximity of a transition to another phase with barely perceptible crystal-structure modification as reported in the paper by Kobayashi et al. [Phys. Rev. B28, 3866 (1983)] while, actually, it was not detected in NMR. The experimental data are compared with those obtained from ab initio calculations.
Trvalý link: https://hdl.handle.net/11104/0345744