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Spin-polarized tunneling through randomly transparent magnetic junctions: Reentrant magnetoresistance approaching the Jullière limit

URN to cite this document:
urn:nbn:de:bvb:355-epub-77973
Tkachov, Grygoriy ; Richter, Klaus
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PDF - Accepted Version
arXiv PDF (28.04.2008)
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PDF - Submitted Version
arXiv PDF (24.03.2008)
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Date of publication of this fulltext: 05 Aug 2009 13:57



Abstract

The electron conductance in planar magnetic tunnel junctions with long-range barrier disorder is studied within Glauber-eikonal approximation enabling exact disorder ensemble averaging by means of the Holtsmark-Markov method. This allows us to address a hitherto unexplored regime of the tunneling magnetoresistance effect characterized by the crossover from k_||-conserving to random tunneling ...

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