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Quantitative and systematic analysis of bias dependence of spin accumulation voltage in a non-degenerate Si spin valve
Soobeom Lee, Fabien Rortais, Ryo Ohshima +5
Spin accumulation voltages in a non-degenerate Si spin valve are discussed quantitatively as a function of electric bias current using systematic experiments and model calculations…
Magnetic anisotropy of ferromagnetic metals in low-symmetry systems
Yoshishige Suzuki, Shinji Miwa
We have constructed an analytic formula to treat the perpendicular magnetic anisotropy energy in ferromagnetic metals with low symmetry, such as C4V and C3V. We find that the aniso…
Macromagnetic simulation for reservoir computing utilizing spin dynamics in magnetic tunnel junctions
Taishi Furuta, Keisuke Fujii, Kohei Nakajima +4
The figures-of-merit for reservoir computing (RC), using spintronics devices called magnetic tunnel junctions (MTJs), are evaluated. RC is a type of recurrent neural network. The i…
Electric-field-induced changes of magnetic moments and magnetocrystalline anisotropy in ultrathin cobalt films
Takeshi Kawabe, Kohei Yoshikawa, Masahito Tsujikawa +10
In this study, the microscopic origins of the voltage-controlled magnetic anisotropy (VCMA) in 3d-ferromagnetic metals are revealed. Using in-situ X-ray fluorescence spectroscopy t…
Observation of large spin accumulation voltages in non-degenerate Si spin devices due to spin drift effect: Experiments and theory
Takayuki Tahara, Yuichiro Ando, Makoto Kameno +7
A large spin-accumulation voltage of more than 1.5 mV at 1 mA, i.e., a magnetoresistance of 1.5 Ω, was measured by means of the local three-terminal magnetoresistance in nondegener…
Study of spin dynamics and damping on the magnetic nanowire arrays with various nanowire widths
Jaehun Cho, Yuya Fujii, Katsunori Konioshi +7
We investigate the spin dynamics including Gilbert damping in the ferromagnetic nanowire arrays. We have measured the ferromagnetic resonance of ferromagnetic nanowire arrays using…