Spin and valley waves in Dirac semimetals with population imbalance

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorZyuzin, A. A.en_US
dc.contributor.authorZyuzin, A. Yuen_US
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.groupauthorCentre of Excellence in Quantum Technology, QTFen
dc.contributor.groupauthorQuantum Circuits and Correlationsen
dc.contributor.organizationSt. Petersburg Scientific Centreen_US
dc.date.accessioned2019-10-04T13:39:04Z
dc.date.available2019-10-04T13:39:04Z
dc.date.issued2019-09-09en_US
dc.description.abstractWe find an intervalley wave collective mode in two- and three-dimensional Dirac semimetals in the presence of a valley population imbalance. The dispersion relation of this mode is gapless, proportional to the square of the wave vector at small frequencies, and inversely proportional to the electron-electron exchange interaction energy. The valley wave serves as an energy gain source for the external field, that generates the intervalley transitions. The spin-wave analog is discussed for the case of a semimetal with nonequilibrium spin orientation.en
dc.description.versionPeer revieweden
dc.format.extent4
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationZyuzin, A A & Zyuzin, A Y 2019, 'Spin and valley waves in Dirac semimetals with population imbalance', Physical Review B, vol. 100, no. 12, 121402, pp. 1-4. https://doi.org/10.1103/PhysRevB.100.121402en
dc.identifier.doi10.1103/PhysRevB.100.121402en_US
dc.identifier.issn2469-9950
dc.identifier.issn2469-9969
dc.identifier.otherPURE UUID: b08fab6c-2454-4423-ba85-784a9693c640en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/b08fab6c-2454-4423-ba85-784a9693c640en_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/37256470/PhysRevB.100.121402.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/40587
dc.identifier.urnURN:NBN:fi:aalto-201910045604
dc.language.isoenen
dc.publisherAmerican Physical Society
dc.relation.fundinginfoWe are grateful for the hospitality of the Pirinem School of Theoretical Physics. A.A.Z. acknowledges the support by the Academy of Finland (Project No. 308339).
dc.relation.ispartofseriesPhysical Review Ben
dc.relation.ispartofseriesVolume 100, issue 12, pp. 1-4en
dc.rightsopenAccessen
dc.titleSpin and valley waves in Dirac semimetals with population imbalanceen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion

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