Anomalous Nernst Effect in the Dirac Semimetal Cd3As2

Author(s): Liang, Tian; Lin, Jingjing; Gibson, Quinn; Gao, Tong; Hirschberger, Max; et al

To refer to this page use: http://arks.princeton.edu/ark:/88435/pr1dt2s
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dc.contributor.authorLiang, Tian-
dc.contributor.authorLin, Jingjing-
dc.contributor.authorGibson, Quinn-
dc.contributor.authorGao, Tong-
dc.contributor.authorHirschberger, Max-
dc.contributor.authorLiu, Minhao-
dc.contributor.authorCava, Robert J-
dc.contributor.authorOng, Nai Phuan-
dc.date.accessioned2018-07-20T15:10:57Z-
dc.date.available2018-07-20T15:10:57Z-
dc.date.issued2017-03-31en_US
dc.identifier.citationLiang, Tian, Lin, Jingjing, Gibson, Quinn, Gao, Tong, Hirschberger, Max, Liu, Minhao, Cava, RJ, Ong, NP. (2017). Anomalous Nernst Effect in the Dirac Semimetal Cd3As2. PHYSICAL REVIEW LETTERS, 118 (10.1103/PhysRevLett.118.136601en_US
dc.identifier.issn0031-9007-
dc.identifier.urihttp://arks.princeton.edu/ark:/88435/pr1dt2s-
dc.description.abstractDirac and Weyl semimetals display a host of novel properties. In Cd3As2, the Dirac nodes lead to a protection mechanism that strongly suppresses backscattering in a zero magnetic field, resulting in ultrahigh mobility (similar to 10(7) cm(2) V-1 s(-1)). In an applied magnetic field, an anomalous Nernst effect is predicted to arise from the Berry curvature associated with the Weyl nodes. We report the observation of a large anomalous Nernst effect in Cd3As2. Both the anomalous Nernst signal and transport relaxation time tau(tr) begin to increase rapidly at similar to 50 K. This suggests a close relation between the protection mechanism and the anomalous Nernst effect. In a field, the quantum oscillations of bulk states display a beating effect, suggesting that the Dirac nodes split into Weyl states, allowing the Berry curvature to be observed as an anomalous Nernst effect.en_US
dc.language.isoenen_US
dc.relation.ispartofPHYSICAL REVIEW LETTERSen_US
dc.rightsFinal published version. This is an open access article.en_US
dc.titleAnomalous Nernst Effect in the Dirac Semimetal Cd3As2en_US
dc.typeJournal Articleen_US
dc.identifier.doidoi:10.1103/PhysRevLett.118.136601-
dc.date.eissued2017-03-29en_US
dc.identifier.eissn1079-7114-
pu.type.symplectichttp://www.symplectic.co.uk/publications/atom-terms/1.0/journal-articleen_US

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