5diridium oxide as a material for spin-current detection

Kohei Fujiwara, Yasuhiro Fukuma, Jobu Matsuno, Hiroshi Idzuchi, Yasuhiro Niimi, Yoshichika Otani, Hidenori Takagi

研究成果: Article査読

90 被引用数 (Scopus)


Devices based on pure spin currents have been attracting increasing attention as key ingredients for low-dissipation electronics. To integrate such spintronics devices into charge-based technologies, electric detection of spin currents is essential. The inverse spin Hall effect converts a spin current into an electric voltage through spin-orbit coupling. Noble metals such as Pt and Pd, and also Cu-based alloys, have been regarded as potential materials for a spin-current injector, owing to the large direct spin Hall effect. Their spin Hall resistivity ρ SH, representing the performance as a detector, is not large enough, however, due mainly because of their low charge resistivity. Here we report that a binary 5d transition metal oxide, iridium oxide, overcomes the limitations encountered in noble metals and Cu-based alloys and shows a very large ρ SH ∼38 μΩ cm at room temperature.

ジャーナルNature communications
出版ステータスPublished - 2013 12月 11

ASJC Scopus subject areas

  • 化学 (全般)
  • 生化学、遺伝学、分子生物学(全般)
  • 物理学および天文学(全般)


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