Observation of spin-charge conversion in CVD-grown single-layer graphene

2); 2) ((1) Osaka Univ.; (2) Kyoto Univ.; (3) Kyushu Univ.); Atsushi Sakai (1); Hiroki Ago (3); Kenji Kawahara (3); Masashi Shiraishi (1; Ryo Ohshima (1); Teruya Shinjo (2)

arxiv: 1408.1738 · v2 · pith:OVRUNNQGnew · submitted 2014-08-08 · ❄️ cond-mat.mtrl-sci · cond-mat.mes-hall

Observation of spin-charge conversion in CVD-grown single-layer graphene

Ryo Ohshima (1) , Atsushi Sakai (1) , Yuichiro Ando (1 , 2) , Teruya Shinjo (2) , Kenji Kawahara (3) , Hiroki Ago (3) , Masashi Shiraishi (1

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2) ((1) Osaka Univ. (2) Kyoto Univ. (3) Kyushu Univ.)

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classification ❄️ cond-mat.mtrl-sci cond-mat.mes-hall

keywords spinconversioncurrentgraphenehallishepumpingsingle-layer

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Conversion of pure spin current to charge current in single-layer graphene (SLG) is investigated by using spin pumping. Large-area SLG grown by chemical vapor deposition is used for the conversion. Efficient spin accumulation in SLG by spin pumping enables observing an electromotive force produced by the inverse spin Hall effect (ISHE) of SLG. The spin Hall angle of SLG is estimated to be 6.1*10-7. The observed ISHE in SLG is ascribed to its non-negligible spin-orbit interaction in SLG.

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Observation of spin-charge conversion in CVD-grown single-layer graphene

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