Thermal Spin-Transfer Torques in Magnetoelectronic Devices
Mesoscale and Nanoscale Physics
2009-11-13 v2 Materials Science
Abstract
We predict that the magnetization direction of a ferromagnet can be reversed by the spin-transfer torque accompanying spin-polarized thermoelectric heat currents. We illustrate the concept by applying a finite-element theory of thermoelectric transport in disordered magnetoelectronic circuits and devices to metallic spin valves. When thermalization is not complete, a spin heat accumulation vector is found in the normal metal spacer, i.e., a directional imbalance in the temperature of majority and minority spins.
Keywords
Cite
@article{arxiv.cond-mat/0701163,
title = {Thermal Spin-Transfer Torques in Magnetoelectronic Devices},
author = {Moosa Hatami and Gerrit E. W. Bauer and Qinfang Zhang and Paul J. Kelly},
journal= {arXiv preprint arXiv:cond-mat/0701163},
year = {2009}
}
Comments
Accepted for publication by Physical Review Letters