Daisuke Maruyama, Manfred Sigrist, Youichi Yanase
This study investigates the spin susceptibility in the superconducting state of a multilayer system with a layer dependent Rashba spin-orbit coupling, representing a locally non-centrosymmetric superconductor. It is shown that the charge imbalance between the different layers yields a strong layer dependence in the susceptibility, most significantly for weak spin-orbit coupling, which is in contrast to the situation with equally distributed charge. These results can be relevant for experimental test in multilayer high-Tc cuprates as well as in superconducting CeCoIn5/YbCoIn5 superlattices with more than two layers.
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http://arxiv.org/abs/1212.3862
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