Angular resonant absorption curves in magnetic nanowire arrays

作者：Cimpoesu Dorin^*; Ding Junjia; Stoleriu Laurentiu; Adeyeye Adekunle; Stancu Alexandru; Spinu Leonard

来源：Applied Physics Letters, 2013, 102(23): 232401.

DOI：10.1063/1.4810758

We systematically probed the dynamics of two-dimensional Ni80Fe20 nanowire arrays with different strengths of interwire interactions using angular dependent microwave absorption spectroscopy. The experimental results are analyzed in terms of a graphical representation of the resonant absorption data through a critical-curve-like approach. This representation has the advantage of offering a direct and complete visual representation of anisotropy, interactions, and magnetization dynamics effects in nanomagnet arrays. In the paper, the connection between the proposed image of polar resonant absorption curves and the static switching field critical curves is substantiated using both macrospin and fully micromagnetic simulation approaches.

• 出版日期2013-6-10