J. Phys. IV France 08 (1998) Pr2-171-Pr2-174
Magnetoelastic wave amplitude and young modulus in amorphous and nanocrystalline Fe73.5Cu1Nb3Si13.5B9R. 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
It is shown that in appropriate experimental conditions a direct relation between the magnetoelastic coupling coefficient k and the amplitude Ao 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 Fe73.5Cu1Nb3Si13.5B9 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.
© EDP Sciences 1998