Spin-wave propagation in metallic co25fe75 films determined by microfocused frequency-resolved magneto-optic kerr effect

Liensberger L, Flacke L, Rogerson D, Althammer M, Gross R, Weiler M (2019)

Publication Type: Journal article

Publication year: 2019

Journal

IEEE Magnetics Letters Institute of Electrical and Electronics Engineers

Book Volume: 10

Article Number: 8721069

DOI: 10.1109/LMAG.2019.2918755

Abstract

We investigated the magnetization dynamics of a patterned Co25Fe75-based heterostructure with a novel optical measurement technique that we call microfocused frequency-resolved magneto-optic Kerr effect. We measured the magnetic field dependence of the dynamical spin-wave susceptibility and recorded a spatial map of the spin waves excited by a microwave antenna. We compare these results to those obtained on the same sample with the established microfocused Brillouin light scattering technique. With both techniques, we find a spin-wave propagation length of 5.6 μm at 10 GHz. We also measured the dispersion of the wave vector and the spin-wave propagation length as a function of the external magnetic field. These results are in good agreement with the existing literature and with the Kalinikos-Slavin model.

Involved external institutions

Bayerische Akademie der Wissenschaften DE Germany (DE)

How to cite

APA:

Liensberger, L., Flacke, L., Rogerson, D., Althammer, M., Gross, R., & Weiler, M. (2019). Spin-wave propagation in metallic co25fe75 films determined by microfocused frequency-resolved magneto-optic kerr effect. IEEE Magnetics Letters, 10. https://dx.doi.org/10.1109/LMAG.2019.2918755

MLA:

Liensberger, Lukas, et al. "Spin-wave propagation in metallic co25fe75 films determined by microfocused frequency-resolved magneto-optic kerr effect." IEEE Magnetics Letters 10 (2019).

BibTeX: Download