Hula T, Schultheiss K, Buzdakov A, Koerber L, Bejarano M, Flacke L, Liensberger L, Weiler M, Shaw JM, Nembach HT, Fassbender J, Schultheiss H (2020)
Publication Type: Journal article
Publication year: 2020
Book Volume: 117
Article Number: 0015269
Journal Issue: 4
DOI: 10.1063/5.0015269
We report on the impact of nonlinear four-magnon scattering on magnon transport in microstructured Co25Fe75 waveguides with low magnetic damping. We determine the magnon propagation length with microfocused Brillouin light scattering over a broad range of excitation powers and detect a decrease in the attenuation length at high powers. This is consistent with the onset of nonlinear four-magnon scattering. Hence, it is critical to remain in the linear regime when deriving damping parameters from the magnon propagation length. Otherwise, the intrinsic nonlinearity of magnetization dynamics may lead to a misinterpretation of magnon propagation lengths and, thus, to incorrect values of the magnetic damping of the system.
APA:
Hula, T., Schultheiss, K., Buzdakov, A., Koerber, L., Bejarano, M., Flacke, L.,... Schultheiss, H. (2020). Nonlinear losses in magnon transport due to four-magnon scattering. Applied Physics Letters, 117(4). https://doi.org/10.1063/5.0015269
MLA:
Hula, Tobias, et al. "Nonlinear losses in magnon transport due to four-magnon scattering." Applied Physics Letters 117.4 (2020).
BibTeX: Download