Universal Magnetic Oscillations of dc Conductivity in the Incoherent Regime of Correlated Systems

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dc.citation.issue19
dc.citation.rankM21
dc.citation.spage196601
dc.citation.volume127
dc.contributor.authorVučičević, Jakša
dc.contributor.authorŽitko, Rok
dc.date.accessioned2023-06-22T09:53:33Z
dc.date.available2023-06-22T09:53:33Z
dc.date.issued2021-11-05
dc.description.abstractUsing the dynamical mean field theory we investigate the magnetic field dependence of dc conductivity in the Hubbard model on the square lattice, fully taking into account the orbital effects of the field introduced via the Peierls substitution. In addition to the conventional Shubnikov-de Haas quantum oscillations, associated with the coherent cyclotron motion of quasiparticles and the presence of a welldefined Fermi surface, we find an additional oscillatory component with a higher frequency that corresponds to the total area of the Brillouin zone. These paradigm-breaking oscillations appear at elevated temperature. This finding is in excellent qualitative agreement with the recent experiments on graphene superlattices. We elucidate the key roles of the off-diagonal elements of the current vertex and the incoherence of electronic states, and explain the trends with respect to temperature and doping.
dc.identifier.doi10.1103/physrevlett.127.196601
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.scopus2-s2.0-85119095515
dc.identifier.urihttps://pub.ipb.ac.rs/handle/123456789/47
dc.identifier.wos000719845900011
dc.language.isoen
dc.publisherAmerican Physical Society (APS)
dc.relation.ispartofPhysical Review Letters
dc.relation.ispartofabbrPhys. Rev. Lett.
dc.rightsopenAccess
dc.titleUniversal Magnetic Oscillations of dc Conductivity in the Incoherent Regime of Correlated Systems
dc.typejournal-article
dc.type.versionpublishedVersion
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