Determination of spin-orbit interaction in semiconductor nanostructures via non-linear transport

Abstract

We investigate non-linear transport signatures stemming from linear and cubic spin-orbit interactions in one- and two-dimensional systems. The analytical zero-temperature response to external fields is complemented by finite temperature numerical analysis, establishing a way to distinguish between linear and cubic spin-orbit interactions. We also propose a protocol to determine the relevant material parameters from transport measurements attainable in realistic conditions, illustrated by values for Ge heterostructures. Our results establish a method for the fast benchmarking of spin-orbit properties in semiconductor nanostructures.

arXiv comment7 pages, 3 figures

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• Relations between normal state nonreciprocal transport and the superconducting diode effect in the trivial and topological phases