Nonreciprocal spin waves in Co-Ta-Zr films and multilayers
Document Type
Conference Proceeding
Publication Date
10-1-2009
Abstract
The propagation of spin waves in single and multilayered ferromagnetic Co-Ta-Zr films is experimentally investigated in this work. Two microstrip antennas placed on top of the magnetic core are used for signal transmission and reception. A metallic ground layer placed on one side of the magnetic film leads to nonreciprocal spin wave dispersion, resulting in a direction-dependent coupling of the antennas. Compared to previous experiments with Ni-Fe films, the higher resistivity of the Co-Ta-Zr reduces the energy dissipation in the device and allows for the incorporation of a thicker magnetic film, thereby increasing the nonreciprocity and the spin wave propagation frequency range. In the case of the Co-Ta-Zr/SiO2 multilayer, the spin wave-mediated coupling of the antennas is strongly dependent on the relative orientation of the magnetizations in the individual layers, and on the application of an external magnetic field. © 2009 IEEE.
Repository Citation
Amiri, P.,
Rejaei, B.,
Zhuang, Y.,
Vroubel, M.,
Lee, D.,
& Wang, S.
(2009). Nonreciprocal spin waves in Co-Ta-Zr films and multilayers. IEEE Transactions on Magnetics, 45 (10), 4215-4218.
https://corescholar.libraries.wright.edu/math/410
DOI
10.1109/TMAG.2009.2022491
