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2008 | 113 | 1 | 35-38
Article title

Spin Torque in Semiconductor Single Planar Tunnel Junctions

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Transport in a single planar tunnel junction with electrodes made of a ferromagnetic semiconductor is analyzed theoretically in the zero- -temperature limit. Tunneling current and both (in-plane and out-of-plane) components of the spin torque exerted on one of the ferromagnetic electrodes are determined as a function of the angle\thet a between magnetic moments of the electrodes. The influence of the bias voltage and spin splitting of the electron band (in both electrodes) on the spin torque components is analyzed numerically.
  • Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland
  • Department of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland
  • Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznań, Poland
  • Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland
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