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  • Title: Collective spin waves in high-density two-dimensional arrays of FeCo nanowires.
    Author: Wang ZK, Lim HS, Zhang VL, Goh JL, Ng SC, Kuok MH, Su HL, Tang SL.
    Journal: Nano Lett; 2006 Jun; 6(6):1083-6. PubMed ID: 16771557.
    Abstract:
    Brillouin measurements have been made of the spin dynamics of high-density two-dimensional hexagonally ordered 20 nm diameter Fe48Co52 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.
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