Interaction Between Thermal Magnons and Phonons in a CoFeB/Au Multilayer

Autor:	A. Trzaskowska, Milosz Zdunek, Hubert Głowiński, Nandan K. P. Babu, Maciej Krawczyk, Sławomir Mielcarek, Jarosław W. Kłos, O. M. Chumak
Rok vydání:	2019
Předmět:	Brillouin zone Condensed Matter::Materials Science Magnetization Materials science Condensed matter physics Phonon Spin wave Dispersion relation Magnon Condensed Matter::Strongly Correlated Electrons Acoustic wave Light scattering Electronic Optical and Magnetic Materials
Zdroj:	IEEE Magnetics Letters. 10:1-5
ISSN:	1949-3088 1949-307X
Popis:	The dispersion relations of thermal magnons and phonons, which exist in a multilayered CoFeB/Au sample deposited on a silicon substrate, were determined by using Brillouin light scattering spectrometry in the oblique geometry, for the 45° angle between the in-plane-oriented static magnetization and the wave vector. Due to the low effective saturation magnetization of the multilayer, we were able to measure the crossing between the dispersion branches for spin waves and surface acoustic waves with the signature of the magnetoelastic interactions in the form of a coalescence of dispersion branches. The oblique geometry was chosen to enhance the interaction between both kinds of waves.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::056b88f601096842c6a45e5971b1010e https://doi.org/10.1109/lmag.2019.2950304 Zobrazit plný text záznamu