Journal
APPLIED PHYSICS LETTERS
Volume 103, Issue 23, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4838256
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Funding
- National Natural Science Foundation of China [11274399, 11127406, 61078027]
- National Basic Research Program of China [2013CB922403, 2013CB922303, 2010CB923200]
- doctoral specialized fund of MOE of China [20090171110005]
- NSF of Guangdong Province [9151027501000077]
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Spin-wave dynamics in 30 nm thick Co2Fe1-xMnxAl full-Heusler films is investigated using time-resolved magneto-optical polar Kerr spectroscopy under an external field perpendicular to films. Damon-Eshbach (DE) and the first-order perpendicular standing spin-wave (PSSW) modes are observed simultaneously in four samples with x = 0, 0.3, 0.7, and 1. The frequency of DE and PSSW modes does not apparently depend on composition x, but damping of DE mode significantly on x and reaches the minimum as x = 0.7. The efficient coherent excitation of DE spin wave exhibits the promising application of Co2Fe0.3Mn0.7Al films in magnonic devices. (C) 2013 AIP Publishing LLC.
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