Electrically controlled crossed Andreev reflection in two-dimensional antiferromagnets
Superconductivity
2021-07-02 v3
Abstract
We report tunable crossed Andreev reflection (CAR) in a superconductor sandwiched between two antiferromagnetic layers. We consider recent examples of two-dimensional magnets with hexagonal lattices, where gate voltages control the carrier type and density, and predict a robust signature of perfect CAR in the nonlocal differential conductance with one electron-doped and one hole-doped antiferromagnetic lead. The magnetic field-free and spin-degenerate CAR signal is electrically controlled and visible over a large voltage range, showing promise for solid-state quantum entanglement applications.
Keywords
Cite
@article{arxiv.2103.07345,
title = {Electrically controlled crossed Andreev reflection in two-dimensional antiferromagnets},
author = {Martin F. Jakobsen and Arne Brataas and Alireza Qaiumzadeh},
journal= {arXiv preprint arXiv:2103.07345},
year = {2021}
}