KFU. Card publication. Pressure-induced spin state crossover in layered cobaltite LaSrCoO4

KAZAN
FEDERAL UNIVERSITY

- RUS
- 中文
- ES

PRESSURE-INDUCED SPIN STATE CROSSOVER IN LAYERED COBALTITE LASRCOO4

Form of presentation

Articles in international journals and collections

Year of publication

2019

Authors, employees of KFU

Belushkin Aleksandr Vladislavovich, author

Other authors

S.E. Kichanov, D.P. Kozlenko, Z. Jirák, B.N. Savenko

Bibliographic description in the original language

Lis O.N. Pressure-induced spin state crossover in layered cobaltite LaSrCoO4 / O.N. Lis, S.E. Kichanov, D.P. Kozlenko, Z. Jirák, A.V. Belushkin, B.N. Savenko //Journal of Magnetism and Magnetic Materials - 2019 - Volume 487, 165360, p. 1-5

Annotation

The crystal structure of the tetragonal layered cobalt oxide LaSrCoO4 has been studied by means of neutron diffraction at high pressures up to 5.8 GPa in temperature range 7?300 K. The pressure and temperature behaviour of the lattice parameters, including lattice parameters, unit cell volume, and interatomic bond lengths, have been obtained. The anisotropic compression of lattice parameters as well as Co-O bond lengths of the oxygen octahedra have been revealed. The anomalous thermal volume expansion at high pressure are observed, indicative for the pressure induced spin state crossover of Co3+ ions from the mixed low spin ? high spin (LS + HS) state at room temperature towards the low spin (LS) ground state. The structural mechanisms of the spin state crossover are discussed.

Keywords

Layered cobaltite, Spin state crossover, Neutron diffraction, High pressure

The name of the journal

Journal of Magnetism and Magnetic Materials

URL

https://www.sciencedirect.com/science/article/abs/pii/S0304885319310182?via%3Dihub#kg005

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=244143&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Belushkin Aleksandr Vladislavovich	ru_RU
dc.date.accessioned	2019-01-01T00:00:00Z	ru_RU
dc.date.available	2019-01-01T00:00:00Z	ru_RU
dc.date.issued	2019	ru_RU
dc.identifier.citation	Lis O.N. Pressure-induced spin state crossover in layered cobaltite LaSrCoO4 / O.N. Lis, S.E. Kichanov, D.P. Kozlenko, Z. Jirák, A.V. Belushkin, B.N. Savenko //Journal of Magnetism and Magnetic Materials - 2019 - Volume 487, 165360, p. 1-5	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=244143&p_lang=2	ru_RU
dc.description.abstract	Journal of Magnetism and Magnetic Materials	ru_RU
dc.description.abstract	The crystal structure of the tetragonal layered cobalt oxide LaSrCoO4 has been studied by means of neutron diffraction at high pressures up to 5.8 GPa in temperature range 7?300 K. The pressure and temperature behaviour of the lattice parameters, including lattice parameters, unit cell volume, and interatomic bond lengths, have been obtained. The anisotropic compression of lattice parameters as well as Co-O bond lengths of the oxygen octahedra have been revealed. The anomalous thermal volume expansion at high pressure are observed, indicative for the pressure induced spin state crossover of Co3+ ions from the mixed low spin ? high spin (LS + HS) state at room temperature towards the low spin (LS) ground state. The structural mechanisms of the spin state crossover are discussed.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Layered cobaltite	ru_RU
dc.subject	Spin state crossover	ru_RU
dc.subject	Neutron diffraction	ru_RU
dc.subject	High pressure	ru_RU
dc.title	Pressure-induced spin state crossover in layered cobaltite LaSrCoO4	ru_RU
dc.type	Articles in international journals and collections	ru_RU