High pressure effects on the crystal and magnetic structure ofnanostructured manganites La.sub.0.63./sub.Sr.sub.0.37./sub.MnO.sub.3./sub. and La.sub.0.72./sub.Sr.sub.0.28./sub.MnO.sub.3./sub..

0449629 - FZÚ 2016 RIV NL eng J - Journal Article
Belozerova, N.M. - Kichanov, S.E. - Jirák, Zdeněk - Kozlenko, D. P. - Kačenka, Michal - Kaman, Ondřej - Lukin, E.V. - Savenko, B. N.
High pressure effects on the crystal and magnetic structure ofnanostructured manganites La_0.63Sr_0.37MnO₃ and La_0.72Sr_0.28MnO₃.
Journal of Alloys and Compounds. Roč. 646, Oct (2015), s. 998-1003. ISSN 0925-8388. E-ISSN 1873-4669
R&D Projects: GA ČR GA15-10088S
Institutional support: RVO:68378271
Keywords : manganites * nanoparticles * neutron diffraction * high pressure * magnetic phase separation
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 3.014, year: 2015

The crystal and magnetic structure of nanostructured manganites La0.63Sr0.37MnO3 and La0.72Sr0.28MnO3 has been studied by means of a neutron diffraction method in the pressure range 0-4.5 GPa and the temperature range 5-300 K. In both samples the FM ordering is formed close above the room temperature and at cooling below T < 270 K the ferromagnetic FM phase coexists with an A-type antiferromagnetic AFM phase. At high pressures the volume fraction of AFM phase increases, while FM is gradually suppressed. The structural aspects of the magnetic phase separation and pressure effects on the studied nanostructured manganites are discussed.
Permanent Link: http://hdl.handle.net/11104/0251147