Journal
APPLIED PHYSICS LETTERS
Volume 101, Issue 22, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4768787
Keywords
-
Categories
Funding
- National Basic Research Program of China [2010CB923200, 2013CB922403]
- National Natural Science Foundation of China [10974032, 61078027, 11204044, 11274399]
- doctoral specialized fund of MOE of China [20090171110005]
- scientific research starting project of Guangzhou University [CZF1-101001, CZF1-101101]
Ask authors/readers for more resources
Laser-induced spin-wave dynamics in an in-plane magnetized FePt film is studied using all-optical pump-probe magneto-optical Kerr spectroscopy under different external fields and pump fluences. Uniform precession spin wave is observed. Nonlinear external field dependence of its frequency is found and well explained by the macrospin model of uniform precession. The effective damping shows a significant external-field dependence. Calculation taking account for magnetic inhomogeneity fits the external-field dependence well, revealing main magnetic inhomogeneity origin of the extrinsic damping. An intrinsic Gilbert damping parameter of <0.028 is inferred and shows potential applications of this film in magnonics. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4768787]
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available