Specular Andreev Reflection in Inversion-symmetric Weyl-semimetals

Abstract

The electron-hole conversion at the normal-metal superconductor interface in inversion-symmetric Weyl semimetals is investigated with an effective two-band model. We find that the specular Andreev reflection of Weyl fermions has two unusual features. The Andreev conductance for s-wave BCS pairing states is anisotropic, depending on the angle between the line connecting a pair of Weyl points and the normal of the junction, due to opposite chirality carried by the paired electrons. For the Fulde-Ferrell-Larkin-Ovchinnikov pairing states, the Andreev reflection spectrum is isotropic and is independent of the finite momentum of the Cooper pairs.

References in corpus (6)

• Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
• Phase transition between the quantum spin Hall and insulator phases in 3D: emergence of a topological gapless phase
• Specular Andreev reflection in graphene
• Bulk superconducting phase with a full energy gap in the doped topological insulator Cu_xBi_2Se_3
• Weyl superconductors
• Superconductivity of doped Weyl semimetals: finite-momentum pairing and electronic analogues of the 3He-A phase

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