activity
20122021
most citedLarge enhancement in the generation efficiency of pure spin currents in Ge using Heusler-compound Co_2FeSi electrodes

72 citations · 231 across the 8 of their papers we have counts for

collaborators

8 papers

cond-mat.mtrl-sci2021★ 10 cited

Spin-scattering asymmetry at half-metallic ferromagnet/ferromagnet interface

Y. Fujita, Y. Miura, T. Sasaki +3

We study spin-scattering asymmetry at the interface of two ferromagnets (FMs) based on a half-metallic CoFeMnSi (CFMS)/CoFe interface. First-principles ballis…

cond-mat.mes-hall2018

Nonlinear Electrical Spin Conversion in a Biased Ferromagnetic Tunnel Contact

R. Jansen, A. Spiesser, H. Saito +4

The conversion of spin information into electrical signals is indispensable for spintronic technologies. Spin-to-charge conversion in ferromagnetic tunnel contacts is well-describe…

cond-mat.mes-hall2018★ 23 cited

Nonmonotonic bias dependence of local spin accumulation signals in ferromagnet/semiconductor lateral spin-valve devices

Y. Fujita, M. Yamada, M. Tsukahara +5

We find extraordinary behavior of the local two-terminal spin accumulation signals in ferromagnet (FM)/semiconductor (SC) lateral spin-valve devices. With respect to the bias volta…

cond-mat.mes-hall2017★ 1 cited

Efficient spin transport along Si 100 at room temperature

M. Ishikawa, M. Tsukahara, Y. Fujita +4

We find efficient spin transport in Si at room temperature in lateral spin valves (LSVs). When the crystal orientation of the spin-transport channel in LSVs is changed from $\langl…

cond-mat.mes-hall2017★ 65 cited

Giant spin accumulation in silicon nonlocal spin-transport devices

A. Spiesser, H. Saito, Y. Fujita +4

Although the electrical injection, transport and detection of spins in silicon have been achieved, the induced spin accumulation was much smaller than expected and desired, limitin…

cond-mat.mtrl-sci2017★ 39 cited

Room-temperature spin transport in n-Ge probed by four-terminal nonlocal measurements

Michihiro Yamada, Makoto Tsukahara, Yuichi Fujita +4

We demonsrtate electrical spin injection and detection in -type Ge (-Ge) at room temperature using four-terminal nonlocal spin-valve and Hanle-effect measurements in lateral…

cond-mat.mtrl-sci2013★ 72 cited

Large enhancement in the generation efficiency of pure spin currents in Ge using Heusler-compound Co_2FeSi electrodes

K. Kasahara, Y. Fujita, S. Yamada +3

We show nonlocal spin transport in n-Ge based lateral spin-valve devices with highly ordered Co_2FeSi/n^+-Ge Schottky tunnel contacts. Clear spin-valve signals and Hanle-effect cur…

cond-mat.mtrl-sci2012★ 21 cited

Room-temperature detection of spin accumulation in silicon across Schottky tunnel barriers using a MOSFET structure

K. Hamaya, Y. Ando, K. Masaki +5

Using a metal-oxide-semiconductor field effect transistor (MOSFET) structure with a high-quality CoFe/n^+Si contact, we systematically study spin injection and spin accumulation in…