Journal
APPLIED PHYSICS LETTERS
Volume 95, Issue 26, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3279152
Keywords
Brillouin spectra; copper; Permalloy; spin waves
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Funding
- Deutsche Forschungsgemeinschaft
- European Grant Master [NMP-FP7212257]
- NSF [DMR-0747609]
- Research Corporation
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We demonstrate experimentally the ability to control by electric current the phase and the wavelength of spin waves propagating in submicrometer magnetic waveguides. The dependence of the spin-wave characteristics on the current and on the excitation frequency was determined by phase-resolved microfocus Brillouin light scattering spectroscopy. We show that moderately small currents are sufficient to induce nearly twofold changes of the wavelength and spin-wave phase shift of more than +/-pi radians over a propagation distance of several micrometers.
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