Effects of Spin Pumping on Spin Waves in Antiferromagnetically Exchange-Coupled Double Layers with Surface Anisotropy
P. Baláža,b and J. Barnaśa,b
aA. Mickiewicz University, Faculty of Physics, Umultowska 85, 61-614 Poznań, Poland
bInstitute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland
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Spin wave modes in antiferromagnetically exchange-coupled magnetic double layers are analyzed theoretically. The considered structure is assumed to be covered by a nonmagnetic metallic layer. The spin wave frequencies and spin wave life times are determined from the macroscopic description based on the Landau-Lifshitz-Gilbert equation, which includes the torque due to spin pumping to the cap layer.

DOI: 10.12693/APhysPolA.128.150
PACS numbers: 75.40.Gb, 75.76.+j, 75.78.-n