Negative magnetoresistance in Fe3O4/Au/Fe spin valves

Sebastiaan van Dijken*, Xavier Fain, Steven M. Watts, J. M D Coey

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

27 Citations (Scopus)

Abstract

The structural, electrical, and magnetic properties of Fe3O 4/Au/Fe spin valves on MgO(001) are presented. In contrast to more conventional spin valve structures, the current-in-plane resistance of the Fe3O4/Au/Fe spin valves is found to be smallest for an antiparallel alignment of the magnetization of the Fe3O4 and Fe layer. Since the electrical current is transported through the low resistance Au and Fe layers, the negative magnetoresistance effect is attributed to an inverse electron spin scattering asymmetry at the Fe3O 4/Au interface.

Original languageEnglish
Article number052409
Number of pages4
JournalPhysical Review B (Condensed Matter and Materials Physics)
Volume70
Issue number5
DOIs
Publication statusPublished - Aug 2004
MoE publication typeA1 Journal article-refereed

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