Tunable Majorana corner modes by orbital-dependent exchange interaction in a two-dimensional topological superconductor

Abstract

We theoretically study the effect of orbital-dependent exchange field in the formation of second order topological superconductors. We demonstrate that changing the orbital difference can induce topological transition and the Majorana corner modes therein can be manipulated. We further propose to detect the corner modes via a normal probe terminal. The conductance quantization is found to be robust to changes of the relevant system parameters.

6 pages, 3 figures. Comments are welcome

References in corpus (5)

• Non-Abelian Anyons and Topological Quantum Computation
• Topological Insulators with Inversion Symmetry
• Reflection symmetric second-order topological insulators and superconductors
• Electrically detected interferometry of Majorana fermions in a topological insulator
• Observing Majorana Bound States in p-wave Superconductors Using Noise Measurements in Tunneling Experiments

Cited by in corpus (3)

• Meissner effect induced Majorana zero modes at small magnetic field
• Higher-order topological superconductor phases in a multilayer system
• Magnetic flux induced higher-order topological superconductivity