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Author(s):
H. Yu, R. Huber, T. Schwarze, F. Brandl, T. Rapp, P. Berberich, G. Duerr, and D. Grundler 
Title:
High propagating velocity of spin waves and temperature dependent damping in a CoFeB thin film 
Abstract:
Spin wave propagation in a magnetron-sputtered CoFeB thin film is investigated. We apply both in-plane and out-of-plane magnetic fields. At room temperature, we find velocities of up to 25 and 3.5 km/s, respectively. These values are much larger compared to a thin permalloy film. Analyzing the resonance linewidth, we obtain an intrinsic Gilbert damping parameter of about 0.007 at room temperature. It increases to 0.023 at 5 K. CoFeB is a promising material for magnonic devices supporting f...    »
 
Keywords:
magnonics; spin wave; damping 
Dewey Decimal Classification:
530 Physik 
FP7 Project ID:
228673 
Journal title:
Appl. Phys. Lett. 
Year:
2012 
Journal volume:
100 
Pages contribution:
262412 
Reviewed:
ja 
Language:
en 
Publisher:
AIP 
Status:
Verlagsversion / published