Magnetoimpedância em multicamadas de Ni81Fe19/Cu com
a corrente de sonda perpendicular ao plano do filme

Callegari, Gustavo Luiz

Dissertação

Fecha

2006-06-02

Registro en:

CALLEGARI, Gustavo Luiz. Magnetoimpedance in multilayers of Ni81Fe19/Cu with the chain of perpendicular sounding lead to the plan of film. 2006. 94 f. Dissertação (Mestrado em Física) - Universidade Federal de Santa Maria, Santa Maria, 2006.

http://repositorio.ufsm.br/handle/1/9258

Autor

Callegari, Gustavo Luiz

Institución

Universidade Federal de Santa Maria (Brasil)

Resumen

In this work the behavior of the magnetoimpedance (MI) in ferromagnetic multilayered (Ni81Fe19/Cu) produced by magnetron sputtering was studied. In all measurements, the probe current was applied perpendicularly to the film surface. The MI measurements were performed in the frequency range 100kHz - 1.8GHz with an HP-4396B impedance analyzer and a specially designed sample holder. Magnetoimpedance ratios of 150% were obtained in some of the studied samples.