Recent development in fabrication of hybrid nanostructures allows for creation of quantum interferometers that combine semiconductor and superconductor materials. We show that in those nanostructures the joint phenomena of Aharonov-Bohm effect and Andreev reflections can be used to determine the length on which the electron is retro-reflected as a hole. We propose to exploit this feature for probing of the quasiparticle coherence length in semiconductor-superconductor hybrids by a magnetoconductance measurement.
@article{arxiv.1809.11111,
title = {Probing Andreev reflection reach in semiconductor-superconductor hybrids by Aharonov-Bohm effect},
author = {M. P. Nowak and P. Wójcik},
journal= {arXiv preprint arXiv:1809.11111},
year = {2019}
}