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Article: Quantum Interference Theory of Magnetoresistance in Dirac Materials

TitleQuantum Interference Theory of Magnetoresistance in Dirac Materials
Authors
Issue Date2019
PublisherAmerican Physical Society. The Journal's web site is located at https://journals.aps.org/prl/
Citation
Physical Review Letters, 2019, v. 122 n. 24, article no. 246601, p. 1-6 How to Cite?
AbstractMagnetoresistance in many samples of Dirac semimetals and topological insulators displays nonmonotonic behavior over a wide range of magnetic fields. Here a formula of magnetoconductivity is presented for massless and massive Dirac fermions in Dirac materials due to quantum interference of Dirac fermions in scalar impurity scattering potentials. It reveals a striking crossover from positive to negative magnetoresistivity, uncovering strong competition between weak localization and weak antilocalization in multiple Cooperon channels at different chemical potentials, effective masses, and finite temperatures. This work sheds light on the important role of strong coupling of the conduction and valence bands in the quantum interference transport in topological nontrivial and trivial Dirac materials.
Persistent Identifierhttp://hdl.handle.net/10722/272306
ISSN
2017 Impact Factor: 8.839
2015 SCImago Journal Rankings: 3.731
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorFu, B-
dc.contributor.authorWang, H-
dc.contributor.authorShen, S-
dc.date.accessioned2019-07-20T10:39:41Z-
dc.date.available2019-07-20T10:39:41Z-
dc.date.issued2019-
dc.identifier.citationPhysical Review Letters, 2019, v. 122 n. 24, article no. 246601, p. 1-6-
dc.identifier.issn0031-9007-
dc.identifier.urihttp://hdl.handle.net/10722/272306-
dc.description.abstractMagnetoresistance in many samples of Dirac semimetals and topological insulators displays nonmonotonic behavior over a wide range of magnetic fields. Here a formula of magnetoconductivity is presented for massless and massive Dirac fermions in Dirac materials due to quantum interference of Dirac fermions in scalar impurity scattering potentials. It reveals a striking crossover from positive to negative magnetoresistivity, uncovering strong competition between weak localization and weak antilocalization in multiple Cooperon channels at different chemical potentials, effective masses, and finite temperatures. This work sheds light on the important role of strong coupling of the conduction and valence bands in the quantum interference transport in topological nontrivial and trivial Dirac materials.-
dc.languageeng-
dc.publisherAmerican Physical Society. The Journal's web site is located at https://journals.aps.org/prl/-
dc.relation.ispartofPhysical Review Letters-
dc.rightsCopyright 2019 by The American Physical Society. This article is available online at https://doi.org/10.1103/PhysRevLett.122.246601.-
dc.titleQuantum Interference Theory of Magnetoresistance in Dirac Materials-
dc.typeArticle-
dc.identifier.emailFu, B: fubo@hku.hk-
dc.identifier.emailShen, S: sshen@hkucc.hku.hk-
dc.identifier.authorityShen, S=rp00775-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1103/PhysRevLett.122.246601-
dc.identifier.pmid31322363-
dc.identifier.scopuseid_2-s2.0-85068114989-
dc.identifier.hkuros299024-
dc.identifier.volume122-
dc.identifier.issue24-
dc.identifier.spagearticle no. 246601, p. 1-
dc.identifier.epagearticle no. 246601, p. 6-
dc.identifier.isiWOS:000473033600008-
dc.publisher.placeUnited States-

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