Effect of annealing temperature on permeability and giant magneto-impedance of Fe-based amorphous ribbon

M. H. Phan, H. X. Peng, M. R. Wisnom, S. C. Yu, C. G. Kim, N. H. Nghi

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

The effect of annealing treatment on permeability and magneto-impedance in Fe73Cu1Nb3.5Si14B8.5 amorphous ribbons was investigated systematically. The magneto-impedance profiles were measured as a function of the external magnetic field at various frequencies up to 10 MHz. The real and imaginary parts of the complex permeability were measured in a frequency range of 0.1-10 MHz under different applied ac field. The results indicated that the longitudinal permeability resulting from domain wall motion decreased drastically after annealing treatment, but the permeability resulting from the rotational magnetization increased with increasing annealing temperature up to 540 °C and then decreased at higher temperatures. The largest magneto-impedance effect was observed in the nanocrystalline alloy. The correlation between the soft magnetic properties and the magnitude and sensitivity of the GMI effect was discussed.

Original languageEnglish
Pages (from-to)62-65
Number of pages4
JournalSensors and Actuators, A: Physical
Volume129
Issue number1-2 SPEC. ISS.
DOIs
StatePublished - 24 May 2006

Bibliographical note

Funding Information:
This work was partially supported by the Korea Science and Engineering Foundation through the Research Center for Advanced Magnetic Materials at Chungnam National University.

Keywords

  • Annealing
  • Fe-based amorphous alloys
  • Magneto-impedance
  • Permeability spectra

Fingerprint

Dive into the research topics of 'Effect of annealing temperature on permeability and giant magneto-impedance of Fe-based amorphous ribbon'. Together they form a unique fingerprint.

Cite this