Dynamic ferromagnetic proximity effect in photoexcited semiconductors

Gerrit E.W. Bauer, Arne Brataas, Yaroslav Tserkovnyak, Betrand I. Halperin, M. Zwierzycki, Paul J. Kelly

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Abstract

The spin dynamics of photoexcited carriers in semiconductors in contact with a ferromagnet is treated theoretically and compared with time-dependent Faraday rotation experiments. The long-time response of the system is found to be governed by the first tens of picoseconds in which the excited plasma interacts strongly with the intrinsic interface between the semiconductor and the ferromagnet in spite of the existence of a Schottky barrier in equilibrium.
Original languageUndefined
Pages (from-to)126601-1-126601-4
Number of pages4
JournalPhysical review letters
Volume92
Issue number12
DOIs
Publication statusPublished - 2004

Keywords

  • IR-47320
  • METIS-217649

Cite this

Bauer, G. E. W., Brataas, A., Tserkovnyak, Y., Halperin, B. I., Zwierzycki, M., & Kelly, P. J. (2004). Dynamic ferromagnetic proximity effect in photoexcited semiconductors. Physical review letters, 92(12), 126601-1-126601-4. https://doi.org/10.1103/PhysRevLett.92.126601