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Inverse spin-Hall effect induced by spin pumping in different size Ni$$_{81}$$Fe$$_{19}$$/Pt films

Nakayama, Hiroyasu*; Ando, Kazuya*; Harii, Kazuya*; Fujikawa, Yasunori*; Kajiwara, Yosuke*; Yoshino, Tatsuro*; Saito, Eiji

The inverse spin-Hall effect, conversion of spin currents into electric voltage, has been investigated in Ni$$_{81}$$Fe$$_{19}$$/Pt bilayer films with different length and width. We measured the electric voltage generated by the inverse spin-Hall effect induced by the spin pumping at room temperature. The experimental results indicate that the electric voltage induced by the inverse spin-Hall effect is proportional to the length of Ni$$_{81}$$Fe$$_{19}$$/Pt bilayer films. In contrast, the electric voltage exhibits almost no variation by changing the width of the Ni$$_{81}$$Fe$$_{19}$$/Pt films. These results are consistent with the inverse spin-Hall effect model.

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Category:Materials Science, Multidisciplinary

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