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The influence of near IR laser annealing on the magnetic properties of Fe-Si sheet

M. VOICU1,* , C. OROS1, S. DINU1

Affiliation

  1. “Valahia” University of Targoviste, Faculty of Sciences and Arts, Science Department, 18 Uniri Blvd., 130024, Targoviste, Romania

Abstract

A pulsed Nd:YAG laser (1.064 μm, 3 ms, 1.2 J) was used to modified the magnetic properties of Fe-Si (6.5 wt% Si) sheet targets by laser annealing. The measurements of hysteresis properties were performed with a mini-single strip tester. The experimental results which include the decreasing of relative magnetic permeability and magnetic remanence and the increasing of coercive force after laser irradiation of the target are reported. A discussion about the obtained experimental results in the term of Weiss magnetic domain is given.

Keywords

Relative magnetic permeability, Coercive force, Remanence, Laser annealing.

Citation

M. VOICU, C. OROS, S. DINU, The influence of near IR laser annealing on the magnetic properties of Fe-Si sheet, Optoelectronics and Advanced Materials - Rapid Communications, 4, 12, December 2010, pp.2044-2047 (2010).

Submitted at: Nov. 14, 2010

Accepted at: Nov. 29, 2010