Strongly bias-dependent tunnel magnetoresistance in manganite spin filter tunnel junctions.
نویسندگان
چکیده
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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عنوان ژورنال:
- Advanced materials
دوره 27 19 شماره
صفحات -
تاریخ انتشار 2015