Complex-Stripe Phases Induced by Staggered Rashba Spin-Orbit Coupling
Abstract
We study superconducting phases in a quasi-two-dimensional multilayer system without local inversion symmetry. Broken local inversion symmetry induces layer-dependent Rashba-type spin-orbit couplings. We find that a complex-stripe phase, which is the intermediate phase between the Fulde-Ferrell (FF) phase and Larkin-Ovchinnikov (LO) phase, is realized in the magnetic field applied parallel to the layers. A crossover from the FF phase to the LO phase appears by tuning temperature and magnetic field. We show the local density of states that characterizes the complex-stripe phase. As a possible realization of the complex-stripe phase, we discuss the artificial superlattices of CeCoIn_5.
Cite
@article{arxiv.1305.4748,
title = {Complex-Stripe Phases Induced by Staggered Rashba Spin-Orbit Coupling},
author = {Tomohiro Yoshida and Manfred Sigrist and Youichi Yanase},
journal= {arXiv preprint arXiv:1305.4748},
year = {2013}
}
Comments
6 pages, 5 figures, final version for publication in J. Phys. Soc. Jpn