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Full-Text Articles in Physical Sciences and Mathematics
Resonant Tunneling In Magnetoresistive Ni/Nio/Co Nanowire Junctions, Andrei Sokolov, Ildar F. Sabiryanov, Evgeny Y. Tsymbal, Bernard Doudin, Xingzhong Li, Jody G. Redepenning
Resonant Tunneling In Magnetoresistive Ni/Nio/Co Nanowire Junctions, Andrei Sokolov, Ildar F. Sabiryanov, Evgeny Y. Tsymbal, Bernard Doudin, Xingzhong Li, Jody G. Redepenning
Chemistry Department: Faculty Publications
Magnetotransport studies performed on electrodeposited Ni/NiO/Co nanojunctions show a broad distribution of magnetoresistance values spanning from +40% to –25%, with an average of about 2%, corresponding to observations on large-area junctions. The dispersion in the results can be understood in terms of tunneling via localized states in the barrier. Calculations based on Landauer–Büttiker theory explain this behavior in terms of disorder-driven statistical variations in magnetoresistance with a finite probability of the inversion of tunnel magnetoresistance sign due to resonant tunneling.
Oligothiophenes And Synthesis Thereof, Andrzej Rajca
Oligothiophenes And Synthesis Thereof, Andrzej Rajca
Chemistry Department: Faculty Publications
Novel oligothiophenes and intermediates therefor are disclosed together with a process for synthesizing them. The oligothiophenes are in the form of a helix which contains five-membered rings unsaturated heterocycles that are cross-conjugated and annelated into a helix.