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Topological States of Multiband Superconductors with Interband Pairing by Holst, M. F.; Sigrist, M.; Samokhin, K. V. is a scholarly article available to read on EtoBox.

What is Topological States of Multiband Superconductors with Interband Pairing about?

We study the effects of interband pairing in two-band s-wave and d-wave superconductors with D4h symmetry in both time-reversal invariant as well as time-reversal symmetry breaking states. The presence of interband pairing qualitatively changes the nodal structure of the superconductor: nodes can (dis)appear, merge, and leave high-symmetry locations when interband pairing is tuned. Furthermore, in the d-wave case, we find that also the boundary modes change qualitatively when interband pairing increases: flat zero-energy Andreev bound states gap out and transition to helical edge states.

Author

Holst, M. F.; Sigrist, M.; Samokhin, K. V.

Published

2023

Language

EN