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arXiv · 1110.6000

Superconductivity without Local Inversion Symmetry; Multi-layer Systems

Daisuke Maruyama·Manfred Sigrist·Youichi Yanase
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Abstract

While multi-layer systems can possess global inversion centers, they can have regions with locally broken inversion symmetry. This can modify the superconducting properties of such a system. Here we analyze two dimensional multi-layer systems yielding spatially modulated antisymmetric spin-orbit coupling (ASOC) and discuss superconductivity with mixed parity order parameters. In particular, the influence of ASOC on the spin susceptibility is investigated at zero temperature. For weak inter-layer coupling we find an enhanced spin susceptibility induced by ASOC, which hints the potential importance of this aspect for superconducting phase in specially structured superlattices.

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Daisuke Maruyama, Manfred Sigrist, Youichi Yanase. 2011-10-27. Superconductivity without Local Inversion Symmetry; Multi-layer Systems. https://doi.org/10.1088/1742-6596/400/2/022069

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