Suppression of spin pumping in the presence of thin titanium interlayer

H. Nakayama, T. Tashiro, R. Takahashi, Y. Kajiwara, T. Ohtani, K. Ando, R. Iguchi, K. Uchida, T. Yoshino, E. Saitoh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The inverse spin-Hall effect (ISHE), conversion of spin currents into charge currents, has recently been observed in paramagnetic metal/ferrimagnetic insulator bilayer films by means of the spin pumping. Here we investigate the ISHE induced by the spin pumping on Pt/Ti/Y3Fe5O 12 and Pt/Ti/BiY2Fe5O12 films, where the Y3Fe5O12 (BiY2Fe 5O12) and Pt layers are separated by thin Ti layer. In these systems, we measured electric voltage due to the ISHE in Pt/Ti/Y 3Fe5O12 (BiY2Fe5O 12) systems at room temperature. The experimental results show that the ISHE signal disappears in the Pt/Ti/Y3Fe5O 12 (BiY2Fe5O12) systems. These results indicate that the spin pumping between Y3Fe5O 12 (BiY2Fe5O12) and Ti layer is suppressed. This method enables us to suppress the spin currents without non-magnetic insulators.

Original languageEnglish
Title of host publicationMaterials Integration
PublisherTrans Tech Publications Ltd
Pages347-352
Number of pages6
ISBN (Print)9783037853764
DOIs
Publication statusPublished - 2012
EventInt. Symposium of GCOE: Materials Integration, in Conjunction with the 2nd Int. Symposium on Advanced Synthesis and Processing Technology for Materials, ASPT 2011 and the 8th Materials Science School for Young Scientists, KINKEN-WAKATE 2011 - Sendai, Japan
Duration: 2011 Dec 12011 Dec 2

Publication series

NameKey Engineering Materials
Volume508
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Other

OtherInt. Symposium of GCOE: Materials Integration, in Conjunction with the 2nd Int. Symposium on Advanced Synthesis and Processing Technology for Materials, ASPT 2011 and the 8th Materials Science School for Young Scientists, KINKEN-WAKATE 2011
CountryJapan
CitySendai
Period11/12/111/12/2

Keywords

  • Ferromagnetic resonance
  • Spin current
  • Spin pumping
  • Spin-Hall effect

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Nakayama, H., Tashiro, T., Takahashi, R., Kajiwara, Y., Ohtani, T., Ando, K., Iguchi, R., Uchida, K., Yoshino, T., & Saitoh, E. (2012). Suppression of spin pumping in the presence of thin titanium interlayer. In Materials Integration (pp. 347-352). (Key Engineering Materials; Vol. 508). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.508.347