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Pressure-induced spin state crossover in layered cobaltite LaSrCoO<inf>4</inf>

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dc.contributor.author Lis O.
dc.contributor.author Kichanov S.
dc.contributor.author Kozlenko D.
dc.contributor.author Jirák Z.
dc.contributor.author Belushkin A.
dc.contributor.author Savenko B.
dc.date.accessioned 2020-01-15T21:18:13Z
dc.date.available 2020-01-15T21:18:13Z
dc.date.issued 2019
dc.identifier.issn 0304-8853
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/155621
dc.description.abstract © 2019 Elsevier B.V. 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.
dc.relation.ispartofseries Journal of Magnetism and Magnetic Materials
dc.subject High pressure
dc.subject Layered cobaltite
dc.subject Neutron diffraction
dc.subject Spin state crossover
dc.title Pressure-induced spin state crossover in layered cobaltite LaSrCoO<inf>4</inf>
dc.type Letter
dc.relation.ispartofseries-volume 487
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS03048853-2019-487-SID85066438333


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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