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Giant magneto-impedance effect in thin amorphous wires at elevated frequencies

C. GARCÍA1, A. ZHUKOV2,3,* , J. GONZALEZ1, V. ZHUKOVA2, J. M. BLANCO2

Affiliation

  1. Dpto. Física de Materiales, Fac. Quimicas, Universidad del Pais Vasco, 20009 San Sebastian, Spain
  2. Dpto. Física Aplicada I, EUPSD, UPV/EHU, Plaza Europa 1, 20018, San Sebastián, Spain
  3. TAMAG Ibérica S.L., Parque Tecnológico de Miramón, Paseo Mikeletegi 56, 1ª Planta, 20009 San Sebastián, Spain

Abstract

We report on novel results on observation of the giant magneto-impedance effect in amorphous microwires with different magnetostriction constant (Fe-rich, with positive magnetostriction constant, Co-rich with negative magnetostriction constant and Co-Fe-rich with nearly-zero magnetostriction constant) in the high frequency region (between 10 MHz and 500 MHz). The observed dependencies have been interpreted in terms of different magneto-elastic energy induced by the fabrication process..

Keywords

Thin microwires, GMI effect, Magnetic anisotropy.

Submitted at: Sept. 5, 2006
Accepted at: Sept. 13, 2006

Citation

C. GARCÍA, A. ZHUKOV, J. GONZALEZ, V. ZHUKOVA, J. M. BLANCO, Giant magneto-impedance effect in thin amorphous wires at elevated frequencies, Journal of Optoelectronics and Advanced Materials Vol. 8, Iss. 5, pp. 1706-1709 (2006)