The crystal and magnetic structure of nanostructured manganite La.sub.0.53./sub.Sr.sub.0.47./sub.MnO.sub.3./sub. at high pressure

0546378 - FZÚ 2022 RIV CH eng J - Journal Article
Belozerova, N.M. - Kichanov, S.E. - Jirák, Zdeněk - Kozlenko, D. P. - Kaman, Ondřej - Lukin, E.V. - Savenko, B. N.
The crystal and magnetic structure of nanostructured manganite La_0.53Sr_0.47MnO₃ at high pressure.
Materials Chemistry and Physics. Roč. 262, Apr. (2021), č. článku 124310. ISSN 0254-0584. E-ISSN 1879-3312
R&D Projects: GA ČR GA18-13323S
Institutional support: RVO:68378271
Keywords : manganites * magentic nanoparticles, * neutron diffraction * high pressure * magnetic phase separation
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 4.778, year: 2021
Method of publishing: Limited access
https://doi.org/10.1016/j.matchemphys.2021.124310

The crystal and magnetic structure of the nanostructured manganite La0.53Sr0.47MnO3 has been studied using the neutron diffraction method in the pressure range 0–5.5 GPa and the temperature range 15–300 K. At ambient pressure, the ferromagnetic ordering in the studied compound is formed below T ≈ 335 K. With an increase of the pressure above 2.1 GPa and cooling below T < 250 K, an A-type antiferromagnetic phase appears, which coexists with the initial ferromagnetic one. Further increase of the pressure leads to the growth of the volume fraction of the antiferromagnetic phase, while the ferromagnetic ordering is gradually suppressed. The structural origins of the pressure-induced magnetic phase separation in the nanostructured manganites are discussed.
Permanent Link: http://hdl.handle.net/11104/0322916