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On the Hall effect in low magnetostrictive Co68.25Fe4.5Si12.25B15 amorphous ribbons

M. LOZOVAN1,* , H. CHIRIAC1, M. NEAGU2

Affiliation

  1. National Institute of R & D for Technical Physics, 47 Mangeron Blvd., 700050 Iasi 3, Romania
  2. ”Al. I. Cuza” University, 11 Carol I Blvd. Iasi, 700506, Romania

Abstract

Results concerning the Hall voltage UH and spontaneous Hall coefficient Rs dependence on the external magnetic induction and heat treatment conditions for Co68.25Fe4.5Si12.25B15 amorphous ribbons tested in the as-cast state and after stress current annealing are presented. The saturation magnetostriction λs of Co68.25Fe4.5Si12.25B15 ribbons change its value and sign from about -1.1x10-7 to about +2.95x10-7 when stress current density annealing increase up to 200x106 A/m2. An n-type conductivity was observed for this kind of material. The obtained results show a strong dependence of the electrical properties of the samples on the current density annealing..

Keywords

Amorphous ribbons, Hall Effect, Saturation magnetostriction.

Submitted at: Nov. 2, 2006
Accepted at: April 15, 2007

Citation

M. LOZOVAN, H. CHIRIAC, M. NEAGU, On the Hall effect in low magnetostrictive Co68.25Fe4.5Si12.25B15 amorphous ribbons, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 4, pp. 848-851 (2007)