We show that Zeeman field can induce a topological transition in two-dimensional spin-orbit coupled metals, and concomitantly, a first-order phase transition in the superconducting state involving a discontinuous change of Cooper pair momentum. Depending on the spin-orbit coupling strength, we find different phase diagrams of 2D superconductors under in-plane magnetic field.
@article{arxiv.2009.03848,
title = {Topological metals and finite-momentum superconductors},
author = {Noah F. Q. Yuan and Liang Fu},
journal= {arXiv preprint arXiv:2009.03848},
year = {2021}
}
Comments
6 pages, 4 figures, Proceedings of National Academy of Sciences in press