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36 papers
Efficient spin transport in a paramagnetic insulator
Koichi Oyanagi, Saburo Takahashi, Ludo J. Cornelissen +6
The discovery of new materials that efficiently transmit spin currents has been important for spintronics and material science. The electric insulator $\mathrm{Gd}_3\mathrm{Ga}_5\m…
Spin-current-related magnetoresistance in epitaxial Pt/Co bilayers in the presence of spin Hall effect and Rashba-Edelstein effect
Ye Du, Saburo Takahashi, Junsaku Nitta
We analyze the experimentally obtained spin-current-related magnetoresistance in epitaxial Pt/Co bilayers by using a drift-diffusion model that incorporates both bulk spin Hall eff…
Anomalous spin Hall magnetoresistance in Pt/Co bilayers
Masashi Kawaguchi, Daiki Towa, Yong-Chang Lau +2
We have studied the spin Hall magnetoresistance (SMR), the magnetoresistance within the plane transverse to the current flow, of Pt/Co bilayers. We find that the SMR increases with…
Spin-current coherence peak in superconductor/magnet junctions
Maki Umeda, Yuki Shiomi, Takashi Kikkawa +4
Coherence peak effects in a superconductor induced by a thermal spin current are reported. We measured inverse spin Hall effects induced by spin injection from a ferrimagnetic insu…
Enhanced Magneto-optical Kerr Effect at Fe/Insulator Interfaces
Bo Gu, Saburo Takahashi, Sadamichi Maekawa
Using density functional theory calculations, we have found an enhanced magneto-optical Kerr effect in Fe/insulator interfaces. The results of our study indicate that interfacial F…
Evaluation of bulk-interface contributions to Edelstein magnetoresistance at metal/oxide interfaces
Junyeon Kim, Yan-Ting Chen, Shutaro Karube +4
We report a systematic study on Edelstein magnetoresistance (Edelstein MR) in Co25Fe75/Cu/Bi2O3 heterostructures with a strong spin-orbit interaction at the Cu/Bi2O3 interface. We…