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 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  μm.
Neusser
S
S
Lehrstuhl für Physik funktionaler Schichtsysteme, Technische Universität München, Physik Department, James-Franck-Str. 1, D-85747 Garching b. München, Germany.
Duerr
G
G
Bauer
H G
HG
Tacchi
S
S
Madami
M
M
Woltersdorf
G
G
Gubbiotti
G
G
Back
C H
CH
Grundler
D
D