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Interplay between strong correlations and electronic topology in the underlying kagome lattice of Na2/3Co O2

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dc.contributor.author Gilmutdinov I.F.
dc.contributor.author Schönemann R.
dc.contributor.author Vignolles D.
dc.contributor.author Proust C.
dc.contributor.author Mukhamedshin I.R.
dc.contributor.author Balicas L.
dc.contributor.author Alloul H.
dc.date.accessioned 2022-02-09T20:48:37Z
dc.date.available 2022-02-09T20:48:37Z
dc.date.issued 2021
dc.identifier.issn 2469-9950
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/170444
dc.description.abstract Electronic topology in metallic kagome compounds is under intense scrutiny. We present transport experiments in Na2/3CoO2 in which the Na order differentiates a Co kagome sublattice in the triangular CoO2 layers. Hall and magnetoresistance (MR) data under high fields give evidence for the coexistence of light and heavy carriers. At low temperatures, the dominant light carrier conductivity at zero field is suppressed by a B-linear MR, suggesting Dirac-like quasiparticles. Lifshitz transitions induced at large B and T unveil the lower mobility carriers. They display a negative B2 MR due to scattering from magnetic moments likely pertaining to a flat band. We emphasize an analogy with heavy fermion physics.
dc.relation.ispartofseries Physical Review B
dc.title Interplay between strong correlations and electronic topology in the underlying kagome lattice of Na2/3Co O2
dc.type Article
dc.relation.ispartofseries-issue 20
dc.relation.ispartofseries-volume 104
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS24699950-2021-104-20-SID85119101672


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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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