Magnetoelastic wave amplitude and young modulus in amorphous and nanocrystalline Fe73.5Cu1Nb3Si13.5B9

R. Germano; V. Iannotti; L. Lanotte

doi:doi:10.1051/jp4:1998241

Issue		J. Phys. IV France Volume 08, Number PR2, June 1998 Soft Magnetic Materials 13


Page(s)		Pr2-171 - Pr2-174
DOI		https://doi.org/10.1051/jp4:1998241

Soft Magnetic Materials 13

J. Phys. IV France 08 (1998) Pr2-171-Pr2-174
DOI: 10.1051/jp4:1998241

Magnetoelastic wave amplitude and young modulus in amorphous and nanocrystalline Fe_73.5Cu₁Nb₃Si_13.5B₉

R. Germano, V. Iannotti and L. Lanotte

Istituto Nazionale per la Fisica della Materia INFM, Dipartimento di Scienze Fisiche, Università di Napoli, p.le V. Tecchio 80, 80125 Napoli, Italy

Abstract
It is shown that in appropriate experimental conditions a direct relation between the magnetoelastic coupling coefficient k and the amplitude A_o of resonant magnetoelastic longitudinal waves can be demonstrated in ribbons of soft ferromagnetic metal. The model conclusions on the behaviour of A versus k were experimentally verified in Fe_73.5Cu₁Nb₃Si_13.5B₉ amorphous alloy ; k optimization were produced by both heat induced structural relaxation and nanocrystallization. Since k is directly dependent on Young modulus, a comparison, both experimental and theoretical, between Young modulus behaviour and magnetoelastic waves amplitude in resonance conditions is consequent.