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Transfer Characteristics in Graphene Field-Effect Transistors with Co Contacts
Ryo Nouchi, Masashi Shiraishi, Yoshishige Suzuki
Graphene field-effect transistors with Co contacts as source and drain electrodes show anomalous distorted transfer characteristics. The anomaly appears only in short-channel devic…
Robustness of Spin Polarization in Graphene-based Spin Valves
Masashi Shiraishi, Megumi Ohishi, Ryo Nouchi +3
Decrease of spin polarization in spintronics devices under an application of bias voltage is one of currently important problems which should be solved. We reveal unprecedented rob…
Bias-driven large power microwave emission from MgO-based tunnel magnetoresistance devices
Alina M. Deac, Akio Fukushima, Hitoshi Kubota +7
Spin-momentum transfer between a spin-polarized current and a ferromagnetic layer can induce steady-state magnetization precession, and has recently been proposed as a working prin…
A Nuclear Magnetic Resonance Study on Rubrene-cobalt Nano-composites
Masashi Shiraishi, Haruka Kusai, Ryo Nouchi +5
We implemented a nuclear magnetic resonance (NMR) study on rubrene(C42H28)-Co nano-composites that exhibit an enhanced magnetoresistance (MR) ratio of 80%. The 59Co NMR spin echo e…