Current-induced modification of spin wave mode interference

Seo Won Lee; Hyun Woo Lee; Kyoung Jin Lee

doi:10.1016/j.cap.2013.10.016

Current-induced modification of spin wave mode interference

Seo Won Lee, Hyun Woo Lee, Kyoung Jin Lee

Department of Materials Science and Engineering

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

Abstract

We have studied the effect of adiabatic spin-transfer torque on mode interference of spin waves. The mode interference generates amplitude-localized spots at special positions which do not move with time. When applying current, the wavevector of spin wave is modified, resulting in current-dependent displacement of amplitude-localized spots. This current-dependent change in the mode interference may allow to probe current-induced spin wave Doppler shift in space-domain. In favorable situations, it can be used to estimate the intrinsic properties of magnetic materials such as spin polarization.

Original language	English
Pages (from-to)	182-186
Number of pages	5
Journal	Current Applied Physics
Volume	14
Issue number	2
DOIs	https://doi.org/10.1016/j.cap.2013.10.016
Publication status	Published - 2014

Bibliographical note

Funding Information:
We would like to thank R.D. McMichael for discussion. This research was supported by the NRF ( 2011-028163 , NRF-2013R1A2A2A01013188 ), MOTIE (No. 10044723 ) and Human Resources Development Program , MKE/KETEP (No. 20114010100640 ).

Keywords

Spin transfer torque
Spin wave Doppler shift
Spin wave interference
Spin waves

ASJC Scopus subject areas

Materials Science(all)
Physics and Astronomy(all)

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10.1016/j.cap.2013.10.016

Cite this

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title = "Current-induced modification of spin wave mode interference",

abstract = "We have studied the effect of adiabatic spin-transfer torque on mode interference of spin waves. The mode interference generates amplitude-localized spots at special positions which do not move with time. When applying current, the wavevector of spin wave is modified, resulting in current-dependent displacement of amplitude-localized spots. This current-dependent change in the mode interference may allow to probe current-induced spin wave Doppler shift in space-domain. In favorable situations, it can be used to estimate the intrinsic properties of magnetic materials such as spin polarization.",

keywords = "Spin transfer torque, Spin wave Doppler shift, Spin wave interference, Spin waves",

author = "Lee, {Seo Won} and Lee, {Hyun Woo} and Lee, {Kyoung Jin}",

note = "Funding Information: We would like to thank R.D. McMichael for discussion. This research was supported by the NRF ( 2011-028163 , NRF-2013R1A2A2A01013188 ), MOTIE (No. 10044723 ) and Human Resources Development Program , MKE/KETEP (No. 20114010100640 ).",

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doi = "10.1016/j.cap.2013.10.016",

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journal = "Current Applied Physics",

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AU - Lee, Seo Won

AU - Lee, Hyun Woo

AU - Lee, Kyoung Jin

N1 - Funding Information: We would like to thank R.D. McMichael for discussion. This research was supported by the NRF ( 2011-028163 , NRF-2013R1A2A2A01013188 ), MOTIE (No. 10044723 ) and Human Resources Development Program , MKE/KETEP (No. 20114010100640 ).

PY - 2014

Y1 - 2014

N2 - We have studied the effect of adiabatic spin-transfer torque on mode interference of spin waves. The mode interference generates amplitude-localized spots at special positions which do not move with time. When applying current, the wavevector of spin wave is modified, resulting in current-dependent displacement of amplitude-localized spots. This current-dependent change in the mode interference may allow to probe current-induced spin wave Doppler shift in space-domain. In favorable situations, it can be used to estimate the intrinsic properties of magnetic materials such as spin polarization.

AB - We have studied the effect of adiabatic spin-transfer torque on mode interference of spin waves. The mode interference generates amplitude-localized spots at special positions which do not move with time. When applying current, the wavevector of spin wave is modified, resulting in current-dependent displacement of amplitude-localized spots. This current-dependent change in the mode interference may allow to probe current-induced spin wave Doppler shift in space-domain. In favorable situations, it can be used to estimate the intrinsic properties of magnetic materials such as spin polarization.

KW - Spin transfer torque

KW - Spin wave Doppler shift

KW - Spin wave interference

KW - Spin waves

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DO - 10.1016/j.cap.2013.10.016

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SN - 1567-1739

VL - 14

SP - 182

EP - 186

JO - Current Applied Physics

JF - Current Applied Physics

IS - 2

ER -

Current-induced modification of spin wave mode interference

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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