Interface electronic structure at the topological insulator-ferrimagnetic insulator junction

Y. Kubota, K. Murata, J. Miyawaki, K. Ozawa, M. C. Onbasli, T. Shirasawa, B. Feng, Sh Yamamoto, R. Y. Liu, S. Yamamoto, S. K. Mahatha, P. Sheverdyaeva, P. Moras, C. A. Ross, S. Suga, Y. Harada, K. L. Wang, I. Matsuda

研究成果: Article査読

7 被引用数 (Scopus)


An interface electron state at the junction between a three-dimensional topological insulator film, Bi2Se3, and a ferrimagnetic insulator film, Y3Fe5O12 (YIG), was investigated by measurements of angle-resolved photoelectron spectroscopy and x-ray absorption magnetic circular dichroism. The surface state of the Bi2Se3 film was directly observed and localized 3d spin states of the Fe3+ in the YIG film were confirmed. The proximity effect is likely described in terms of the exchange interaction between the localized Fe 3d electrons in the YIG film and delocalized electrons of the surface and bulk states in the Bi2Se3 film.

ジャーナルJournal of Physics Condensed Matter
出版ステータスPublished - 2017 2 8

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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