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Non-Equilibrium Green Function Method in Spin Transfer Torque |
Journal of Magnetics, Volume 12, Number 2, 30 Jun 2007, Pages 72-76 |
Chun-Yeol You* (Department of Physics, Inha University) |
Abstract |
We investigate the spin transfer torque in metallic multilayer system by employing Keldysh non-equilibrium Green function method. We study the dependences of the spin transfer torque on the detailed energy configuration of ferromagnetic, spacer, and lead layers. With Keldysh non-equilibrium Green function method applied to a single band model, we explore spin transfer torque effect in various layer structures and for various material parameters. |
Keywords: spin transfer torque; non-equilibrium Green function; current induced magnetization switching |
DOI: 10.4283/JMAG.2007.12.2.72 |
Full Text: PDF |
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