論文

査読有り
2017年12月

Quantum oscillations and Dirac-Landau levels in Weyl superconductors

PHYSICAL REVIEW B
  • Tianyu Liu
  • ,
  • Satoshi Fujimoto
  • ,
  • M. Franz

96
22
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1103/PhysRevB.96.224518
出版者・発行元
AMER PHYSICAL SOC

When magnetic field is applied to metals and semimetals quantum oscillations appear as individual Landau levels cross the Fermi level. Quantum oscillations generally do not occur in superconductors (SC) because magnetic field is either expelled from the sample interior or, if strong enough, drives the material into the normal state. In addition, elementary excitations of a superconductor-Bogoliubov quasiparticles-do not carry a well-defined electric charge and therefore do not couple in a simple way to the applied magnetic field. We predict here that in Weyl superconductors certain types of elastic strain have the ability to induce chiral pseudomagnetic field, which can reorganize the electronic states into Dirac-Landau levels with linear band crossings at low energy. The resulting quantum oscillations in the quasiparticle density of states and thermal conductivity can be experimentally observed under a bending deformation of a thin film Weyl SC and provide new insights into this fascinating family of materials.

リンク情報
DOI
https://doi.org/10.1103/PhysRevB.96.224518
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000419000900008&DestApp=WOS_CPL
URL
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85040100453&origin=inward
ID情報
  • DOI : 10.1103/PhysRevB.96.224518
  • ISSN : 2469-9950
  • eISSN : 2469-9969
  • SCOPUS ID : 85040100453
  • Web of Science ID : WOS:000419000900008

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