Platform for engineering topological superconductors: Superlattices on Rashba superconductors
Yao Lu, Wen-Yu He, Dong-Hui Xu, Nian Lin, K. T. Law
DOI 10.1103/PhysRevB.94.024507 · Physical Review B
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Abstract
The search for topological superconductors which support Majorana fermion excitations has been an important topic in condensed matter physics. In this work, we propose an experimental scheme for engineering topological superconductors. In this scheme, by manipulating the superlattice structure of organic molecules placed on top of a superconductor with Rashba spin-orbit coupling, topological superconducting phases can be achieved without or with little fine tuning of the chemical potential. Moreover, superconductors with different Chern numbers can be obtained by changing the superlattice structure of the organic molecules.
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