Anisotropy energy distribution determined by Mössbauer spectroscopy in a metallic glass

F. SANCHEZ; E. PASSAMANI; P. MENDOZA ZÉLIS; A. BIONDO; M. VAZQUEZ; J. R. PROVETI; C. LARICA; A. F. CABRERA; E. BAGGIO SAITOVICH

Reñaca, Chile

Workshop; VII Latin American Workshop on Magnetism, Magnetic Materials and their applications; 2005

  The distribution of frozen-in magnetic anisotropy in as-quenched Fe73.5Si13.5Cu1Nb3-xVxB9  (x = 0, 2) amorphous melt-spun ribbons was studied by Mössbauer effect spectroscopy, using the temperature dependent magnetoelastic effect produced on the metallic glass by 1mm Al coatings. Al coatings were deposited by RF sputtering at T» 350 K on both sides of the amorphous ribbons. Estimated magnetic anisotropy values were below 1kJ/m3, with preeminence of anisotropy energy densities lower than 300 J/m3.