Models for magnetoresistance in tunnel junctions

descriptionPublicationkeyboard_double_arrow_right Article 01 Aug 1999 English Publisher:Springer Science and Business Media LLCJournal:The European Physical Journal B, volume 10, pages 599-606 (issn: 1434-6028,

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Authors: S. Zhang; P.M. Levy;

doi: 10.1007/s100510050892

Models for magnetoresistance in tunnel junctions

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Abstract

We show there are putative pitfalls when one predicts the magnetoresistance of magnetic tunnel junctions (JMR) based on different toy models. Amongst them are the sensitivity of the MR to the details of the profile of the potential barrier between the metallic electrodes and the insulating barrier, and the common assumption of only one band of electrons. We indicate the ingredients that are necessary to obtain a more complete description of the JMR of magnetic tunnel junctions.

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