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Current-induced modification of spin wave mode interference
- Authors
- Lee, Seo-Won; Lee, Hyun-Woo; Lee, Kyung-Jin
- Issue Date
- Feb-2014
- Publisher
- ELSEVIER
- Keywords
- Spin transfer torque; Spin waves; Spin wave Doppler shift; Spin wave interference
- Citation
- CURRENT APPLIED PHYSICS, v.14, no.2, pp.182 - 186
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- CURRENT APPLIED PHYSICS
- Volume
- 14
- Number
- 2
- Start Page
- 182
- End Page
- 186
- ISSN
- 1567-1739
- 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. (C) 2013 Elsevier B.V. All rights reserved.
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