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https://doi.org/10.1063/1.4848835
Title: | Tunable magnetic anisotropy in two-dimensional arrays of Ni 80Fe20 elements | Authors: | Saha, S. Barman, S. Ding, J. Adeyeye, A.O. Barman, A. |
Issue Date: | 9-Dec-2013 | Citation: | Saha, S., Barman, S., Ding, J., Adeyeye, A.O., Barman, A. (2013-12-09). Tunable magnetic anisotropy in two-dimensional arrays of Ni 80Fe20 elements. Applied Physics Letters 103 (24) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.4848835 | Abstract: | Tunable two-fold magnetic anisotropy in two-dimensional arrays of Ni 80Fe20 (permalloy) elliptical elements arranged along their long (LA) or short axis (SA) are demonstrated from the measurement of time-resolved magnetization dynamics. The anisotropy field is maximum (minimum) when the elements are closely packed along their LA (SA) and take an intermediate value when they are well separated. Micromagnetic simulations reveal that the centre mode of the ellipse shows the two-fold anisotropy and that the variation in the anisotropy field stems from the strong competition between the shape anisotropy of the constituent elements and the inter-element magnetostatic interaction fields within the arrays. © 2013 AIP Publishing LLC. | Source Title: | Applied Physics Letters | URI: | http://scholarbank.nus.edu.sg/handle/10635/83222 | ISSN: | 00036951 | DOI: | 10.1063/1.4848835 |
Appears in Collections: | Staff Publications |
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