A patterned square silver antidot lattice on a thin uniform permalloy film facilitates direct coupling of a quasi-uniform microwave field to short wavelength magnetic modes. The resulting modes are studied as a function of both the magnitude and orientation (relative to the symmetry axes of the array) of an in-plane, external DC magnetic field. The observed modes are identified as surface spin waves with wavelengths matching the Fourier components of the silver array.
|Journal||Applied Physics Letters|
|State||Published - Jul 30 2012|
Bibliographical noteFunding Information:
This work received support by the Air Force Office of Scientific Research and utilized facilities maintained by the NSF supported Northwestern Materials Research Center. Sample preparation was done at UK, Lexington under support from U.S. DoE Grant No. DE-FG02-97ER45653.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)