title: Spin-pump-induced spin transport in p-type Si at room temperature.
abstract: A spin battery concept is applied for the dynamical generation of pure spin current and spin transport in p-type silicon (p-Si). Ferromagnetic resonance and effective s-d coupling in Ni(80)Fe(20) results in spin accumulation at the Ni(80)Fe(20)/p-Si interface, inducing spin injection and the generation of spin current in the p-Si. The pure spin current is converted to a charge current by the inverse spin Hall effect of Pd evaporated onto the p-Si. This approach demonstrates the generation and transport of pure spin current in p-Si at room temperature.
authors.affiliation: Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan.
authors.forename: Eiji
authors.initials: E
authors.lastname: Shikoh
authors.affiliation: Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
authors.forename: Kazuya
authors.initials: K
authors.lastname: Ando
authors.affiliation: Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan.
authors.forename: Kazuki
authors.initials: K
authors.lastname: Kubo
authors.affiliation: Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan and CREST, Japan Science and Technology Agency, Sanbancho, Tokyo 102-0075, Japan and The Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan.
authors.forename: Eiji
authors.initials: E
authors.lastname: Saitoh
authors.affiliation: Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan.
authors.forename: Teruya
authors.initials: T
authors.lastname: Shinjo
authors.affiliation: Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan and PRESTO, Japan Science and Technology Agency, Sanbancho, Tokyo 102-0075, Japan.
authors.forename: Masashi
authors.initials: M
authors.lastname: Shiraishi