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|Title:||Time-domain study of spin-wave dynamics in two-dimensional arrays of bi-component magnetic structures|
|Source:||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|
|Appears in Collections:||Staff Publications|
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