Quantum noise in the spin transfer torque effect
Mesoscale and Nanoscale Physics
2019-11-27 v1
Abstract
Describing the microscopic details of the interaction of magnets and spin-polarized currents is key to achieve control of such systems at the microscopic level. Here we discuss a description based on the Keldysh technique, casting the problem in the language of open quantum systems. We reveal the origin of noise in the presence of both field-like and damping like terms in the equation of motion arising from spin conductance.
Cite
@article{arxiv.1904.12372,
title = {Quantum noise in the spin transfer torque effect},
author = {Camillo Tassi and Marco Barbieri and Roberto Raimondi},
journal= {arXiv preprint arXiv:1904.12372},
year = {2019}
}