Nonlocality of electrically-induced spin accumulation in chiral metals

TL;DR

This paper investigates how electric fields induce nonlocal spin accumulation in chiral metals, revealing a uniform spin response due to chiral angular momentum, which supports recent experimental observations of long-range spin transport.

Contribution

It introduces a theoretical framework showing nonlocal spin generation in chiral metals caused by electric fields, highlighting the role of chiral angular momentum.

Findings

Identification of a uniform spin response component in chiral metals

Theoretical support for nonlocal long-range spin transport

Connection to recent experimental observations

Abstract

Spin accumulation induced by an electric field in chiral electron system is investigated based on a linear response theory. It is shown that the spin response function has a spatially uniform component due to the chiral angular momentum generation effect, resulting in a nonlocal spin generation. The result suggests a scenario for nonlocal long-range spin transport in chiral metals reported experimentally recently.