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Influence of Nanocrystallization on the High-Frequency Magnetoimpedance in Ultrathin Fe83Cu1Nb7B9 Melt-Spun Ribbons.

Published online by Cambridge University Press:  21 February 2011

L. Brunetti ,
O. Rampado ,
P. Tiberto  and
F. Vinai
L. Brunetti
Affiliation:
Istituto Elettrotecnico Nazionale Galileo Ferraris, Corso M. d'Azeglio 42, 1-10125 Torino, Italyand INFM Torino Politecnico Unit
O. Rampado
Affiliation:
Istituto Elettrotecnico Nazionale Galileo Ferraris, Corso M. d'Azeglio 42, 1-10125 Torino, Italyand INFM Torino Politecnico Unit
P. Tiberto
Affiliation:
Istituto Elettrotecnico Nazionale Galileo Ferraris, Corso M. d'Azeglio 42, 1-10125 Torino, Italyand INFM Torino Politecnico Unit
F. Vinai
Affiliation:
Istituto Elettrotecnico Nazionale Galileo Ferraris, Corso M. d'Azeglio 42, 1-10125 Torino, Italyand INFM Torino Politecnico Unit
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Abstract

Ultrathin ribbons of amorphous Fe83Cu1Nb7B9 obtained by planar flow casting, have been submitted to dc Joule heating in vacuum to develop a nanocrystalline phase. Variations in the initial magnetic permeability as high as 1000 times the as-quenched value have been measured in a wide range of nanocrystalline samples. The magnetoimpedance behavior in the microwave region has been studied as a function of the nanocrystalline state. In this work the intensity of the impedance variation has been related to the samples degree of softness.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 577: Symposium H – Advanced Hard and Soft Magnetic Materials , 1999 , 569
Copyright
Copyright © Materials Research Society 1999

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References

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