Current noise geometrically generated by a driven magnet
Mesoscale and Nanoscale Physics
2020-05-27 v2
Abstract
We consider a non-equilibrium cross-response phenomenon, whereby a driven magnetization gives rise to electric shot noise (but no d.c. current). This effect is realized on a nano-scale, with a small metallic ferromagnet which is tunnel-coupled to two normal metal leads. The driving gives rise to a precessing magnetization. The geometrically generated noise is related to a non-equilibrium distribution in the ferromagnet. Our protocol provides a new channel for detecting and characterizing ferromagnetic resonance.
Keywords
Cite
@article{arxiv.1906.02730,
title = {Current noise geometrically generated by a driven magnet},
author = {Tim Ludwig and Igor S. Burmistrov and Yuval Gefen and Alexander Shnirman},
journal= {arXiv preprint arXiv:1906.02730},
year = {2020}
}
Comments
5+4 pages, 3 figures