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Title: Collective spin waves in high-density two-dimensional arrays of FeCo nanowires
Authors: Wang, Z.K. 
Lim, H.S. 
Zhang, V.L. 
Goh, J.L.
Ng, S.C. 
Kuok, M.H. 
Su, H.L.
Tang, S.L.
Issue Date: Jun-2006
Citation: Wang, Z.K., Lim, H.S., Zhang, V.L., Goh, J.L., Ng, S.C., Kuok, M.H., Su, H.L., Tang, S.L. (2006-06). Collective spin waves in high-density two-dimensional arrays of FeCo nanowires. Nano Letters 6 (6) : 1083-1086. ScholarBank@NUS Repository.
Abstract: Brillouin measurements have been made of the spin dynamics of high-density two-dimensional hexagonally ordered 20 nm diameter Fe48Co 52 nanowire arrays, with various interwire spacings, as a function of longitudinal magnetic field. The experimental data are analyzed within the Arias-Mills theory based on interwire dipolar couplings in the arrays. The results provide conclusive evidence of collective spin waves arising from the dipolar coupling which is manifested as a reduction in spin wave frequency with decreasing interwire spacing. © 2006 American Chemical Society.
Source Title: Nano Letters
ISSN: 15306984
DOI: 10.1021/nl060026+
Appears in Collections:Staff Publications

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