Dynamic ferromagnetic proximity effect in photoexcited semiconductors

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Bauer, Gerrit E.W. and Brataas, Arne and Tserkovnyak, Yaroslav and Halperin, Betrand I. and Zwierzycki, Maciej and Kelly, Paul J. (2004) Dynamic ferromagnetic proximity effect in photoexcited semiconductors. Physical Review Letters, 92 (12). p. 126601. ISSN 0031-9007

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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.
Item Type:Article
Copyright:© 2004 The American Physical Society
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/47320
Official URL:http://dx.doi.org/10.1103/PhysRevLett.92.126601
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Metis ID: 217649