Surface-acoustic-wave-driven spin pumping in Y3Fe 5O12/Pt hybrid structure

Ken Ichi Uchida; Toshu An; Yosuke Kajiwara; Masaya Toda; Eiji Saitoh

doi:10.1063/1.3662032

Surface-acoustic-wave-driven spin pumping in Y₃Fe ₅O₁₂/Pt hybrid structure

Ken Ichi Uchida, Toshu An, Yosuke Kajiwara, Masaya Toda, Eiji Saitoh

Research output: Contribution to journal › Article › peer-review

41 Citations (Scopus)

Abstract

A spin current generated from a surface acoustic wave (SAW) was observed in an Y₃Fe₅O₁₂ (YIG)/Pt hybrid structure. At the YIG/Pt interface, a SAW generated in the YIG layer was found to pump a spin current into the Pt layer, which was detected through the inverse spin-Hall effect in the Pt. The YIG/Pt lateral structure combined with a piezoelectric wedge transducer enables the systematic investigation of the spin-voltage distribution due to the SAW in the YIG. Since the observed phenomenon has high affinity with SAW-based electronics, it will pave the way for constructing spintronic SAW devices.

Original language	English
Article number	212501
Journal	Applied Physics Letters
Volume	99
Issue number	21
DOIs	https://doi.org/10.1063/1.3662032
Publication status	Published - 2011 Nov 21

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Surface-acoustic-wave-driven spin pumping in Y3Fe 5O12/Pt hybrid structure",

abstract = "A spin current generated from a surface acoustic wave (SAW) was observed in an Y3Fe5O12 (YIG)/Pt hybrid structure. At the YIG/Pt interface, a SAW generated in the YIG layer was found to pump a spin current into the Pt layer, which was detected through the inverse spin-Hall effect in the Pt. The YIG/Pt lateral structure combined with a piezoelectric wedge transducer enables the systematic investigation of the spin-voltage distribution due to the SAW in the YIG. Since the observed phenomenon has high affinity with SAW-based electronics, it will pave the way for constructing spintronic SAW devices.",

author = "Uchida, {Ken Ichi} and Toshu An and Yosuke Kajiwara and Masaya Toda and Eiji Saitoh",

note = "Funding Information: The authors thank Sadamichi Maekawa, Hiroto Adachi, Burkard Hillebrands, Andrii V. Chumak, and Takahito Ono for valuable discussions. This work was supported by a Grant-in-Aid for Scientific Research A (21244058) from MEXT, Japan, the global COE for the “Materials Integration International Center of Education and Research” from MEXT, Japan, and CREST-JST {"}Creation of Nanosystems with Novel Functions through Process Integration,{"} Japan.",

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AU - Uchida, Ken Ichi

AU - An, Toshu

AU - Kajiwara, Yosuke

AU - Toda, Masaya

AU - Saitoh, Eiji

N1 - Funding Information: The authors thank Sadamichi Maekawa, Hiroto Adachi, Burkard Hillebrands, Andrii V. Chumak, and Takahito Ono for valuable discussions. This work was supported by a Grant-in-Aid for Scientific Research A (21244058) from MEXT, Japan, the global COE for the “Materials Integration International Center of Education and Research” from MEXT, Japan, and CREST-JST "Creation of Nanosystems with Novel Functions through Process Integration," Japan.

PY - 2011/11/21

Y1 - 2011/11/21

N2 - A spin current generated from a surface acoustic wave (SAW) was observed in an Y3Fe5O12 (YIG)/Pt hybrid structure. At the YIG/Pt interface, a SAW generated in the YIG layer was found to pump a spin current into the Pt layer, which was detected through the inverse spin-Hall effect in the Pt. The YIG/Pt lateral structure combined with a piezoelectric wedge transducer enables the systematic investigation of the spin-voltage distribution due to the SAW in the YIG. Since the observed phenomenon has high affinity with SAW-based electronics, it will pave the way for constructing spintronic SAW devices.

AB - A spin current generated from a surface acoustic wave (SAW) was observed in an Y3Fe5O12 (YIG)/Pt hybrid structure. At the YIG/Pt interface, a SAW generated in the YIG layer was found to pump a spin current into the Pt layer, which was detected through the inverse spin-Hall effect in the Pt. The YIG/Pt lateral structure combined with a piezoelectric wedge transducer enables the systematic investigation of the spin-voltage distribution due to the SAW in the YIG. Since the observed phenomenon has high affinity with SAW-based electronics, it will pave the way for constructing spintronic SAW devices.

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Surface-acoustic-wave-driven spin pumping in Y₃Fe ₅O₁₂/Pt hybrid structure

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