Electric control of magnetization relaxation in thin film magnetic insulators

Zihui Wang; Yiyan Sun; Young Yeal Song; Mingzhong Wu; Helmut Schultheib; John E. Pearson; Axel Hoffmann

doi:10.1063/1.3654148

Electric control of magnetization relaxation in thin film magnetic insulators

Zihui Wang
, Yiyan Sun
, Young Yeal Song
, Mingzhong Wu
, Helmut Schultheib
, John E. Pearson
, Axel Hoffmann

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

Abstract

Control of magnetization relaxation in magnetic insulators via interfacial spin scattering is demonstrated. The experiments use nanometer-thick yttrium iron garnet (YIG)/Pt layered structures, with the Pt layer biased by an electric voltage. The bias voltage produces a spin current across the Pt thickness. As this current scatters off the YIG surface, it exerts a torque on the YIG surface spins. This torque can reduce or enhance the damping and thereby decrease or increase the ferromagnetic resonance linewidth of the YIG film, depending on the field/current configuration.

Original language	English (US)
Article number	162511
Journal	Applied Physics Letters
Volume	99
Issue number	16
DOIs	https://doi.org/10.1063/1.3654148
State	Published - Oct 17 2011
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3654148

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title = "Electric control of magnetization relaxation in thin film magnetic insulators",

abstract = "Control of magnetization relaxation in magnetic insulators via interfacial spin scattering is demonstrated. The experiments use nanometer-thick yttrium iron garnet (YIG)/Pt layered structures, with the Pt layer biased by an electric voltage. The bias voltage produces a spin current across the Pt thickness. As this current scatters off the YIG surface, it exerts a torque on the YIG surface spins. This torque can reduce or enhance the damping and thereby decrease or increase the ferromagnetic resonance linewidth of the YIG film, depending on the field/current configuration.",

author = "Zihui Wang and Yiyan Sun and Song, \{Young Yeal\} and Mingzhong Wu and Helmut Schultheib and Pearson, \{John E.\} and Axel Hoffmann",

note = "Work at Colorado State University was supported by the U.S. National Science Foundation and the U.S. National Institute of Standards and Technology. Work at Argonne was supported by the U.S. Department of Energy.",

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doi = "10.1063/1.3654148",

language = "English (US)",

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journal = "Applied Physics Letters",

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T1 - Electric control of magnetization relaxation in thin film magnetic insulators

AU - Wang, Zihui

AU - Sun, Yiyan

AU - Song, Young Yeal

AU - Wu, Mingzhong

AU - Schultheib, Helmut

AU - Pearson, John E.

AU - Hoffmann, Axel

N1 - Work at Colorado State University was supported by the U.S. National Science Foundation and the U.S. National Institute of Standards and Technology. Work at Argonne was supported by the U.S. Department of Energy.

PY - 2011/10/17

Y1 - 2011/10/17

N2 - Control of magnetization relaxation in magnetic insulators via interfacial spin scattering is demonstrated. The experiments use nanometer-thick yttrium iron garnet (YIG)/Pt layered structures, with the Pt layer biased by an electric voltage. The bias voltage produces a spin current across the Pt thickness. As this current scatters off the YIG surface, it exerts a torque on the YIG surface spins. This torque can reduce or enhance the damping and thereby decrease or increase the ferromagnetic resonance linewidth of the YIG film, depending on the field/current configuration.

AB - Control of magnetization relaxation in magnetic insulators via interfacial spin scattering is demonstrated. The experiments use nanometer-thick yttrium iron garnet (YIG)/Pt layered structures, with the Pt layer biased by an electric voltage. The bias voltage produces a spin current across the Pt thickness. As this current scatters off the YIG surface, it exerts a torque on the YIG surface spins. This torque can reduce or enhance the damping and thereby decrease or increase the ferromagnetic resonance linewidth of the YIG film, depending on the field/current configuration.

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DO - 10.1063/1.3654148

M3 - Article

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SN - 0003-6951

VL - 99

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 16

M1 - 162511

ER -

Electric control of magnetization relaxation in thin film magnetic insulators

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