Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.4811561
Title: Time-domain study of spin-wave dynamics in two-dimensional arrays of bi-component magnetic structures
Authors: Saha, S.
Barman, S.
Ding, J.
Adeyeye, A.O. 
Barman, A.
Issue Date: 17-Jun-2013
Citation: Saha, S., Barman, S., Ding, J., Adeyeye, A.O., Barman, A. (2013-06-17). Time-domain study of spin-wave dynamics in two-dimensional arrays of bi-component magnetic structures. Applied Physics Letters 102 (24) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.4811561
Abstract: Spin-waves in single Ni80Fe20 (Py) and Co bi-component units embedded in two-dimensional arrays thereof are investigated by all-optical time-resolved magneto-optical Kerr effect microscope. Two bands of modes observed for the bias field applied along the long-axis of the bi-component unit convert into four distinct bands, and the mode frequencies change significantly as the field is rotated to the short-axis. Micromagnetic simulations reproduce the experimental results, and comparison with single Py and Co elements and single bi-component unit reveals significant variations of mode frequencies and mode profiles, indicating opportunities for magnonic band engineering in this type of bi-component arrays. © 2013 AIP Publishing LLC.
Source Title: Applied Physics Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/83211
ISSN: 00036951
DOI: 10.1063/1.4811561
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