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

S. Neusser, G. Duerr, H. G. Bauer, S. Tacchi, M. Madami, G. Woltersdorf, G. Gubbiotti, C. H. Back, D. Grundler
2010 Physical Review Letters  
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
more » ... onnected nanowires which takes place over distances of up to 20 m.
doi:10.1103/physrevlett.105.067208 pmid:20868008 fatcat:qr3qxqw2k5gupentzx7kiokhae