| Literature DB >> 25845706 |
Bhagwati Prasad1, Wenrui Zhang2, Jie Jian2, Haiyan Wang2, Mark G Blamire1.
Abstract
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.Entities:
Keywords: Coulomb blockade; Fowler-Nordheim tunneling; manganites; spin filter; tunnel magnetoresistance
Year: 2015 PMID： 25845706 DOI： 10.1002/adma.201405147
Source DB: PubMed Journal: Adv Mater ISSN： 0935-9648 Impact factor: 30.849