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arXiv · 1709.04663

Superlattice platform for chiral superconductivity with tuneable and high Chern numbers

Kim Pöyhönen·Teemu Ojanen
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Abstract

Finding concrete realizations for topologically nontrivial chiral superconductivity has been a long-standing goal in quantum matter research. Here we propose a route to a systematic realization of chiral superconductivity with nonzero Chern numbers. This goal can be achieved in a nanomagnet lattice deposited on top of a spin-orbit coupled two-dimensional electron gas (2DEG) with proximity s-wave superconductivity. The proposed structure can be regarded as a universal platform for chiral superconductivity supporting a large variety of topological phases. The topological state of the system can be electrically controlled by, for example, tuning the density of the 2DEG.

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Kim Pöyhönen, Teemu Ojanen. 2017-09-14. Superlattice platform for chiral superconductivity with tuneable and high Chern numbers. https://doi.org/10.1103/physrevb.96.174521

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