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Pulsed laser deposited amorphous magnetic films for strain detection.

Kahlen O., Benziger T., Regener D.

Inżynieria Materiałowa

2001

R. XXII, nr 4

423-425

Amorphous magnetic Fe-B-Si films have been produced by means of KrF laser ablation of Fe78B13Si9 amorphous magnetic ribbons. Laser fluence, repetition rate and the number of pulses were the variable parameters. TEM and AFM investigations of the deposited films exhibited a hetero-amorphous structure with dimensions in the 4-6 nm range. Physical parameters, such as the Curie temperature value and electrical resistance were comparable to those of the initial ribbon target material. Strain dependent eddy current measurements revealed a linear and very high signal response to applied strains, showing the films potential for a variety of applications until now performed by strain gauges.