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Current-induced spin injection from probe to ferromagnetic film

  • Radio Phenomena in Solids and Plasma
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Abstract

The distribution of the spin polarization of conduction electrons is calculated under the conditions for the spin injection from a probe to a ferromagnetic film in the presence of current. It is demonstrated that the main parameters that determine the deviation of the spin polarization from equilibrium are the current density and spin polarization of the probe material, whereas the ratio of the probe diameter to the spin diffusion length weakly affects the result in certain ranges. The population inversion of the spin subbands can be reached at distances of about spin diffusion length from the probe-film interface.

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Authors
  1. Yu. V. Gulyaev
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  2. P. E. Zil’berman
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  3. A. I. Panas
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  4. S. G. Chigarev
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  5. E. M. Epshtein
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Additional information

Original Russian Text © Yu.V. Gulyaev, P.E. Zil’berman, A.I. Panas, S.G. Chigarev, E.M. Epshtein, 2010, published in Radiotekhnika i Elektronika, 2010, Vol. 55, No. 6, pp. 715–719.

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Gulyaev, Y.V., Zil’berman, P.E., Panas, A.I. et al. Current-induced spin injection from probe to ferromagnetic film. J. Commun. Technol. Electron. 55, 668–672 (2010). https://doi.org/10.1134/S1064226910060082

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  • DOI: https://doi.org/10.1134/S1064226910060082

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