The 64th JSAP Spring Meeting, 2017

Presentation information

Poster presentation

10 Spintronics and Magnetics » 10 Spintronics and Magnetics(Poster)

[14p-P10-1~98] 10 Spintronics and Magnetics(Poster)

Tue. Mar 14, 2017 4:00 PM - 6:00 PM P10 (BP)

4:00 PM - 6:00 PM

[14p-P10-11] Spin-charge conversion in Bi1-xSbx layer

YUICHIRO ANDO1, Ryouhei Kumamoto1, Sergey Dushenko1, Teruya Shinjo1, Masashi Shiraishi1 (1.Kyoto Univ.)

Keywords: spin-charge conversion, BiSb alloys, spin pumping

Bi1-xSbx alloys exhibit a wide variety of characteristics. For example, whereas pure Bi (x=0) is a semimetal material with a Dirac fermion, Bi1-xSbx alloys with x=0.07-0.22 are three dimensional topological insulators. Interestingly, semimetal Bi1-xSbx alloys (x=0-0.07) and topological insulator Bi1-xSbx alloys (x=0.07-0.22) have the same crystal structure, which enables a systematical investigation of spin-charge conversion properties without change in the crystal structure. In this study, we investigated spin-charge conversion efficiency in Bi1-xSbx alloys by using spin pumping.

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