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Magnetoelastic thin films for high-frequency applications

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4 Author(s)
A. Ludwig ; Center of Adv. Eur. Studies & Res., Bonn, Germany ; M. Lohndorf ; M. Tewes ; E. Quandt

High-frequency magnetic thin films with cut-off frequencies well above 2 GHz and good magnetoelastic properties are key materials for the development of new magnetic devices such as remote-interrogated magnetoelastic sensors or micro-inductors. In order to achieve high cut-off frequencies the films must have high magnetization, high anisotropy field, moderate permeability and resistivity. Therefore, multilayered thin films consisting of the transition metal alloy Fe60Co60 and the amorphous soft magnetic alloy Co 80B20 have been developed which show cut-off frequencies higher than 2 GHz combined with good magnetoelastic properties

Published in:

IEEE Transactions on Magnetics  (Volume:37 ,  Issue: 4 )