Journal
SOLID STATE COMMUNICATIONS
Volume 198, Issue -, Pages 30-34Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ssc.2013.12.026
Keywords
Parametric excitation; Instability threshold; Magnetoelastic effects; Spin pumping
Categories
Funding
- FOM Foundation
- Marie Curie ITN Spinicur
- Reimei program of the Japan Atomic Energy Agency
- EU RTN Spinicur
- ICC-IMR, DFG Priority Programme 1538 Spin-Caloric Transport
- [25247056]
- [252209]
- Grants-in-Aid for Scientific Research [26103006, 25247056] Funding Source: KAKEN
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Recent experiments demonstrated generation of spin currents by ultrasound. We can understand this acoustically induced spin pumping in terms of the coupling between magnetization and lattice waves. Here we study the parametric excitation of magnetization by longitudinal acoustic waves and calculate the acoustic threshold power. The induced magnetization dynamics can be detected by the spin pumping into an adjacent normal metal that displays the inverse spin Hall effect. (C) 2014 Elsevier Ltd. All rights reserved.
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