期刊
PHYSICAL REVIEW B
卷 95, 期 17, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.95.174505
关键词
-
资金
- Boulder Summer School for Condensed Matter and Materials Physics through NSF [DMR-13001648]
- NSERC
- CIfAR
A linear Josephson junction mediated by the surface states of a time-reversal-invariant Weyl or Dirac semimetal localizes Majorana flat bands protected by the time-reversal symmetry. We show that as a result, the Josephson current exhibits a discontinuous jump at pi phase difference which can serve as an experimental signature of the Majorana bands. The magnitude of the jump scales proportionally to the junction width and the momentum space distance between the Weyl nodes. It also exhibits a characteristic dependence on the junction orientation. We demonstrate that the jump is robust against the effects of nonzero temperature and weak nonmagnetic disorder.
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