Non-equilibrium quantum transport and analytical conductance formula in spin-textured diffusive superconducting heterostructures
Abstract
We study non-equilibrium quantum transport of spin, heat, and charge in diffusive heterostructures including both superconductors and materials with spin-dependent fields, such as textured ferromagnets and spin-orbit coupled materials. Using the quasiclassical theory of superconductivity, we derive a general analytical formula for the zero-temperature charge conductance valid in the non-linear regime. The analytical results are in excellent agreement with previous numerical calculations at small but finite temperatures. We predict a strong deviation between the conductance spectra and local density of states in certain junctions, which is important to correctly identify spectroscopic fingerprints of unconventional superconductivity.
Keywords
Cite
@article{arxiv.1706.03069,
title = {Non-equilibrium quantum transport and analytical conductance formula in spin-textured diffusive superconducting heterostructures},
author = {Tom Doekle Vethaak and Jabir Ali Ouassou and Jacob Linder},
journal= {arXiv preprint arXiv:1706.03069},
year = {2017}
}
Comments
Manuscript contains incorrect assumption, analytical method not valid for general spin-textured systems