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

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 Ni80Fe20 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 μm.


Published in:
Physical Review Letters, 105, 6
Year:
2010
ISSN:
1079-7114
Laboratories:




 Record created 2015-07-08, last modified 2018-03-17


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