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Proceedings Paper

Transient grating generation of ultrafast surface magneto-elastic waves
Author(s): Chia-Lin Chang; Julius Janušonis; Vladimir M. Vlasov; Alexey M. Lomonosov; Vasily V. Temnov; Ra'anan I. Tobey
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Paper Abstract

We present a simple experimental approach to generating and detecting surface-propagating magneto-elastic waves. Using the ultrafast optical transient grating geometry, we drive in-plane propagating surface acoustic waves which couple to, and resonantly drive, magnetization precession in thin magnetic films. The optical approach provides for the real-time detection of both elastic wave transients as well as the tightly coupled magnetization precession in independent detection channels and thus reveals the tight coupling between the two when an appropriate magnetic field is applied. We discuss the experimental geometry and resulting linear magneto-elastic responses. We briefly touch upon nonlinear magnetoelastic properties, which is the focus of our current work.

Paper Details

Date Published: 26 September 2016
PDF: 9 pages
Proc. SPIE 9931, Spintronics IX, 99312V (26 September 2016); doi: 10.1117/12.2239110
Show Author Affiliations
Chia-Lin Chang, Univ. of Groningen (Netherlands)
Julius Janušonis, Univ. of Groningen (Netherlands)
Vladimir M. Vlasov, IMMM, CNRS, Univ. du Maine (France)
Alexey M. Lomonosov, IMMM, CNRS, Univ. du Maine (France)
Vasily V. Temnov, IMMM, CNRS, Univ. du Maine (France)
Ra'anan I. Tobey, Univ. of Groningen (Netherlands)

Published in SPIE Proceedings Vol. 9931:
Spintronics IX
Henri-Jean Drouhin; Jean-Eric Wegrowe; Manijeh Razeghi, Editor(s)

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