Thermal spin-transfer torque in magnetoelectronic devices.

نویسندگان

  • Moosa Hatami
  • Gerrit E W Bauer
  • Qinfang Zhang
  • Paul J Kelly
چکیده

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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عنوان ژورنال:
  • Physical review letters

دوره 99 6  شماره 

صفحات  -

تاریخ انتشار 2007