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Spin-electricity conversion induced by spin injection into topological insulators.
Shiomi, Y; Nomura, K; Kajiwara, Y; Eto, K; Novak, M; Segawa, Kouji; Ando, Yoichi; Saitoh, E.
Afiliação
  • Shiomi Y; Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
  • Nomura K; Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
  • Kajiwara Y; Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
  • Eto K; Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan.
  • Novak M; Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan.
  • Segawa K; Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan.
  • Ando Y; Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan.
  • Saitoh E; Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan and WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan and CREST, Japan Science and Technology Agency, Tokyo 102-0076, Japan and Advanced Science Research Center, Japan Atomic Energy Age
Phys Rev Lett ; 113(19): 196601, 2014 Nov 07.
Article em En | MEDLINE | ID: mdl-25415913
We report successful spin injection into the surface states of topological insulators by using a spin pumping technique. By measuring the voltage that shows up across the samples as a result of spin pumping, we demonstrate that a spin-electricity conversion effect takes place in the surface states of bulk-insulating topological insulators Bi(1.5)Sb(0.5)Te(1.7)Se(1.3) and Sn-doped Bi(2)Te(2)Se. In this process, the injected spins are converted into a charge current along the Hall direction due to the spin-momentum locking on the surface state.
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Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2014 Tipo de documento: Article
Buscar no Google
Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2014 Tipo de documento: Article