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Physical Review B
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arXiv.org e-Print Archive
Preprint . 2008
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Physical Review B
Article . 2008 . Peer-reviewed
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https://dx.doi.org/10.48550/ar...
Article . 2008
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Quasireversible magnetoresistance in exchange-spring tunnel junctions

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 10 Nov 2008Embargo end date: 01 Jan 2008 English Publisher:American Physical Society (APS)Journal:Physical Review B, volume 78 (issn: 1098-0121, eissn: 1550-235X, Copyright policy )
Authors: Zhu, M.; Wilson, M. J.; Mitra, P.; Schiffer, P.; Samarth, N.;

doi: 10.1103/physrevb.78.195307 , 10.48550/arxiv.0807.2885

arXiv: 0807.2885

Quasireversible magnetoresistance in exchange-spring tunnel junctions

Abstract

We report a large, quasi-reversible tunnel magnetoresistance in exchange-biased ferromagnetic semiconductor tunnel junctions wherein a soft ferromagnetic semiconductor (\gma) is exchange coupled to a hard ferromagnetic metal (MnAs). Our observations are consistent with the formation of a region of inhomogeneous magnetization (an "exchange spring") within the biased \gma layer. The distinctive tunneling anisotropic magnetoresistance of \gma produces a pronounced sensitivity of the magnetoresistance to the state of the exchange spring.

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Keywords

Condensed Matter - Materials Science, Materials Science (cond-mat.mtrl-sci), FOS: Physical sciences

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    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    		 9
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    		 Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
9
Average
Average
Top 10%
Green
bronze