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Strongly bias-dependent tunnel magnetoresistance in manganite spin filter tunnel junctions. | LitMetric
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Strongly bias-dependent tunnel magnetoresistance in manganite spin filter tunnel junctions.

Bhagwati Prasad Wenrui Zhang Jie Jian Haiyan Wang Mark G Blamire

Adv Mater

Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge, CB3 0FS, UK.

Published: May 2015

A highly unconventional bias-dependent tunnel magnetoresistance (TMR) response is observed in Sm0.75 Sr0.25 MnO3 -based nanopillar spin filter tunnel junctions (SFTJs) with two different behaviors in two different thickness regimes of the barrier layer. Thinner barrier devices exhibit conventional SFTJ behaviors; however, for larger barrier thicknesses, the TMR-bias dependence is more complex and reverses sign at higher bias.

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http://dx.doi.org/10.1002/adma.201405147DOI Listing

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