Anisotropic Propagation and Damping of Spin Waves in a Nanopatterned Antidot Lattice

作者：Neusser S^*; Duerr G; Bauer H G; Tacchi S; Madami M; Woltersdorf G; Gubbiotti G; Back C H; Grundler D

来源：Physical Review Letters, 2010, 105(6): 067208.

DOI：10.1103/PhysRevLett.105.067208

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.

• 出版日期2010-8-6