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Title: Magnetization dynamics in permalloy films with stripe domains
Authors: Tee Soh, W.
Phuoc, N.N. 
Tan, C.Y.
Ong, C.K. 
Issue Date: 7-Aug-2013
Citation: Tee Soh, W., Phuoc, N.N., Tan, C.Y., Ong, C.K. (2013-08-07). Magnetization dynamics in permalloy films with stripe domains. Journal of Applied Physics 114 (5) : -. ScholarBank@NUS Repository.
Abstract: Through a systematic investigation of the field-dependent dynamic magnetization of a series of NiFe films with and without stripe domains in conjunction with the static magnetization process, we demonstrate that the experimental rotatable anisotropy field is not a fixed value but strongly varied with the external in-plane magnetic field, being qualitatively associated with the emergence of stripe domains. Moreover, the frequency linewidth spectra of the films with stripe domains show an abnormal behavior with three distinct regimes which are strongly correlated with both the static magnetization process and the competition between external magnetic field and dynamic anisotropy field. The results are discussed in terms of the effect of inhomogeneous magnetization associated with the formation of stripe domains and the field-dependent dynamic anisotropy that cause the broadening of frequency linewidth. © 2013 AIP Publishing LLC.
Source Title: Journal of Applied Physics
ISSN: 00218979
DOI: 10.1063/1.4817767
Appears in Collections:Staff Publications

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