Pure crossed Andreev reflection assisted transverse valley currents in $\alpha-\mathcal{T}_3$ lattices
Superconductivity
2022-09-13 v2 Mesoscale and Nanoscale Physics
Abstract
We propose a novel method for the generation of the transverse valley currents, which is based on the pure crossed Andreev reflection (pCAR) in the superconducting hybrid junctions composed of the gapped lattices with ferromagnet-induced exchange interaction. The angle-resolved pCAR probability is asymmetric for a given valley, resulting in the transverse valley currents with zero net charge. This pCAR assisted charge-valley conversion is highly efficient with the valley Hall angle reaching an order of unity, suggesting potential applications for valleytronic devices.
Keywords
Cite
@article{arxiv.2205.14930,
title = {Pure crossed Andreev reflection assisted transverse valley currents in $\alpha-\mathcal{T}_3$ lattices},
author = {W. Zeng and R. Shen},
journal= {arXiv preprint arXiv:2205.14930},
year = {2022}
}
Comments
6 pages, 4 figures