Thermal Spin-Transfer Torques in Magnetoelectronic Devices

Details Thermal Spin-Transfer Torques in Magnetoelectronic Devices Thermal Spin-Transfer Torques in Magnetoelectronic Devices

2007-01-09

arxiv.org/abs/cond-mat/0701163v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Accepted for publication by Physical Review Letters

Scientific paper

10.1103/PhysRevLett.99.066603

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.

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