2015/02/28 by Manuel Houzet, Julia S. Meyer · 1 citation
Physics and Astronomy · #cond-mat.supr-con
published as Phys. Rev. B 92, 014509 (2015) · 6 pages, 1 figure
arxiv created 2015/07/30 · arxiv updated 2015/07/31
We derive the quasiclassical equations that describe two-dimensional superconductors with a large Rashba spin-orbit coupling and in the presence of impurities. These equations account for the helical phase induced by an in-plane magnetic field, with a superconducting order parameter that is spatially modulated along a direction perpendicular to the field. We also derive the generalized Ginzburg-Landau functional, which includes a linear-in-gradient term corresponding to the helical phase. This theory paves the way for studies of the proximity effect in two-dimensional electron gases with large spin-orbit coupling.