Publication Date:
2017-09-27
Description:
Author(s): C. Timm, A. P. Schnyder, D. F. Agterberg, and P. M. R. Brydon The half-Heusler superconductors such as YPtBi are multiorbital systems with both strong spin-orbit coupling and broken inversion symmetry. The spin-orbit coupling allows for the formation of Cooper pairs with effective spins larger than unity, which introduces novel pairing states. Some of these states display Fermi surfaces of Bogoliubov quasiparticles. On the other hand, the absence of inversion symmetry leads to topologically protected nodes associated with specific surface features as, for example, flat bands. The authors consider two likely pairing symmetries for this material, one that breaks time-reversal symmetry and one that does not, and find a rich variety of bulk nodes and surface states. [Phys. Rev. B 96, 094526] Published Tue Sep 26, 2017
Keywords:
Superfluidity and superconductivity
Print ISSN:
1098-0121
Electronic ISSN:
1095-3795
Topics:
Physics
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