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

Язык

английский

Authors, employees of KFU

Belushkin Aleksandr Vladislavovich, author

Other authors

Jirak Zdenek , author

Kichanov Sergey Evgenevich, author

Kozlenko Denis Petrovich, author

Savenko Boris Nikolaevich, author

Authors, students KFU

Lis Olga Nikolaevna, author

Bibliographic description in the original language

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

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

neutron diffraction, magnetism, spin states

The name of the journal

Journal of Magnetism and Magnetic Materials

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

https://repository.kpfu.ru/eng/?p_id=202523&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Belushkin Aleksandr Vladislavovich	ru_RU
dc.contributor.author	Jirak Zdenek	ru_RU
dc.contributor.author	Kichanov Sergey Evgenevich	ru_RU
dc.contributor.author	Kozlenko Denis Petrovich	ru_RU
dc.contributor.author	Savenko Boris Nikolaevich	ru_RU
dc.contributor.author	Lis Olga Nikolaevna	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	Belushkin A.V. Pressure-induced spin state crossover in layered cobaltite LaSrCoO4/ O.N.Lis, S.E.Kichanov, D.P.Kozlenko, Z.Jirak, A.V.Belushkin, B.N.Savenko// Journal of Magnetism and Magnetic Materials 487 (2019) 165360	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=202523&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	neutron diffraction	ru_RU
dc.subject	magnetism	ru_RU
dc.subject	spin states	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