Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.3647952
Title: Ferromagnetic and antiferromagnetic spin-wave dispersions in a dipole-exchange coupled bi-component magnonic crystal
Authors: Zhang, V.L. 
Lim, H.S. 
Lin, C.S.
Wang, Z.K. 
Ng, S.C. 
Kuok, M.H. 
Jain, S. 
Adeyeye, A.O. 
Cottam, M.G.
Issue Date: 3-Oct-2011
Source: Zhang, V.L., Lim, H.S., Lin, C.S., Wang, Z.K., Ng, S.C., Kuok, M.H., Jain, S., Adeyeye, A.O., Cottam, M.G. (2011-10-03). Ferromagnetic and antiferromagnetic spin-wave dispersions in a dipole-exchange coupled bi-component magnonic crystal. Applied Physics Letters 99 (14) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3647952
Abstract: The magnon dispersion relations of the ferromagnetic and antiferromagnetic phases in a dipole-exchange coupled one-dimensional magnonic crystal comprising alternating cobalt and Permalloy nanostripes have been mapped by Brillouin spectroscopy. To elucidate the magnetization dynamics at the interfaces between stripes, the experimental data are analyzed based on a macroscopic theory under Hoffmann-type boundary conditions. Good agreement is obtained between theory and experiment for both the ferromagnetic and antiferromagnetic phases. Results suggest the existence of strong exchange coupling across the cobalt-Permalloy interfaces, comparable with the exchange coupling within each component material. © 2011 American Institute of Physics.
Source Title: Applied Physics Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/56047
ISSN: 00036951
DOI: 10.1063/1.3647952
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