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

Ryo Ohshima; Atsushi Sakai; Yuichiro Ando; Teruya Shinjo; Kenji Kawahara; Hiroki Ago; Masashi Shiraishi

doi:10.1063/1.4893574

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

Materials Science 2015-06-22 v2 Mesoscale and Nanoscale Physics

Authors: Ryo Ohshima , Atsushi Sakai , Yuichiro Ando , Teruya Shinjo , Kenji Kawahara , Hiroki Ago , Masashi Shiraishi

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Abstract

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.

Keywords

spin-charge conversion single-layer graphene spin pumping inverse spin Hall effect chemical vapor deposition spin-orbit interaction

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@article{arxiv.1408.1738,
  title  = {Observation of spin-charge conversion in CVD-grown single-layer graphene},
  author = {Ryo Ohshima and Atsushi Sakai and Yuichiro Ando and Teruya Shinjo and Kenji Kawahara and Hiroki Ago and Masashi Shiraishi},
  journal= {arXiv preprint arXiv:1408.1738},
  year   = {2015}
}

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21 pages, 3 figures

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

Abstract

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