Magnetization dynamics in a three-dimensional interconnected nanowire array
Magnetization dynamics in a three-dimensional interconnected nanowire array
复制标题
三维互连纳米线阵列中的磁化动力学
DOI：
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发表时间：
2023
期刊：
影响因子：
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通讯作者：
R. Hertel
中科院分区：
文献类型：
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作者：
R. Cheenikundil;M. d’Aquino;R. Hertel
三维磁性纳米结构是近年来出现的具有独特性质的人工磁性材料类型，具有潜在的应用前景，包括磁振子器件。互连磁性纳米线是这类材料中吸引特别兴趣的子类别。基于线性化的Landau-Lifshitz-吉尔伯特方程的频域公式，通过微磁学模拟研究了圆柱形磁性纳米线立方阵列的高频磁化动力学.由外部振荡场激发的小角度高频磁化动力学在不同的频率下显示出清晰的共振。这些共振被确定为振荡连接到特定的几何特征和微磁配置。纳米线阵列的吸收光谱的几何形状和配置依赖性证明了这种磁性系统的可调谐和可重新编程的磁振子应用的潜力。
Three-dimensional magnetic nanostructures have recently emerged as artificial magnetic material types with unique properties bearing potential for applications, including magnonic devices. Interconnected magnetic nanowires are a sub-category within this class of materials that is attracting particular interest. We investigate the high-frequency magnetization dynamics in a cubic array of cylindrical magnetic nanowires through micromagnetic simulations based on a frequency-domain formulation of the linearized Landau-Lifshitz-Gilbert equation. The small-angle high-frequency magnetization dynamics excited by an external oscillatory field displays clear resonances at distinct frequencies. These resonances are identified as oscillations connected to specific geometric features and micromagnetic configurations. The geometry- and configuration-dependence of the nanowire array's absorption spectrum demonstrates the potential of such magnetic systems for tuneable and reprogrammable magnonic applications.
DOI：
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发表时间：
2015
期刊：
影响因子：
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作者：
Sotaro Tsuda;Kazuki Yamazaki;Kazuki Nakamura;Taichi Goto;Hiroyuki Takagi;Pang Boey Lim and Mitsuteru Inoue,
通讯作者：
Pang Boey Lim and Mitsuteru Inoue,