Anisotropic Propagation and Damping of Spin Waves in a Nanopatterned Antidot Lattice
Anisotropic Propagation and Damping of Spin Waves in a Nanopatterned Antidot Lattice
复制标题
DOI：
10.1103/physrevlett.105.067208
复制
发表时间：
2010-08-06
影响因子：
8.6
通讯作者：
Grundler, D.
中科院分区：
文献类型：
--
作者：
Neusser, S.;Duerr, G.;Grundler, D.
全电自旋波光谱、布里渊光散射以及磁光克尔效应相结合，研究自旋波通过纳米图案化到 Ni(80)Fe(20) 薄膜中的磁性解点晶格传播。发现传播速度，特别是弛豫特征取决于所施加的面内磁场。我们通过在互连纳米线网络中磁场控制的自旋波引导来解释观察到的各向异性，该网络的距离可达 20 μm。
All-electrical spin-wave spectroscopy, Brillouin light scattering, as well as the magneto-optical Kerr effect are combined to study spin-wave propagation through a magnetic antidot lattice nanopatterned into a Ni(80)Fe(20) thin film. The propagation velocities and, in particular, the relaxation are found to depend characteristically on the applied in-plane magnetic field. We explain the observed anisotropies by magnetic field-controlled spin-wave guiding in a network of interconnected nanowires which takes place over distances of up to 20 mu m.