Spin-polarized tunneling through a thin-film

Details Spin-polarized tunneling through a thin-film Spin-polarized tunneling through a thin-film

2001-12-22

arxiv.org/abs/cond-mat/0112431v1

Physics Letters A 270 (2000) 353-358

Physics

Condensed Matter

Disordered Systems and Neural Networks

5 pages, LaTex, 2 EPS figures

Scientific paper

10.1016/S0375-9601(00)00340-6

The effect of spin-disorder scattering on perpendicular transport in a magnetic monolayer is considered within the single-site Coherent Potential Approximation (CPA). The exchange interaction between a conduction electron and localized moment of the magnetic ion is treated with the use of the $s-f$ model. Electron-spin polarization is evaluated in the tunnel current which comes from the different densities of spin-up, spin-down conduction electrons at the Fermi level in a ferromagnetic semiconductor (EuS). Calculated results are compared with some tunneling experiments.

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