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Numéro
J. Phys. III France
Volume 4, Numéro 7, July 1994
Page(s) 1335 - 1340
DOI https://doi.org/10.1051/jp3:1994205
DOI: 10.1051/jp3:1994205
J. Phys. III France 4 (1994) 1335-1340

FMR studies of cobalt-based amorphous ribbons ; effect of the temperature

E. Saint-Christophe1, R. Barrue2 and J. C. Perron3

1  Laboratoire IXL, Université de Bordeaux I, 351 cours de la Libération, 33405 Talence Cedex, France
2  L.E.S.I.R., E.N.S. de Cachan, 61 av. du Pdt Wilson, 94235 Cachan Cedex, France
3  Laboratoire de Génie Electrique de Paris, associé au C.N.R.S., N$^{\circ}$ 127, Plateau du Moulon, 91190 Gif-sur-Yvette, France

(Received 9 March 1993, revised 1 March 1994, accepted 12 April 1994)

Abstract
The aim of this study is to point out the magnetic behaviour of cobalt-based amorphous conductors from ferromagnetic resonance measurements. From our data, linewidth $\Delta H$, position H0, and amplitude $(\Delta r/r)_{\max}$ of the resonance peak and values of the flattening factor  K, we determine the g-factor (or Landé factor), the damping parameter $\lambda$, the transverse relaxation time T2 as well as the maximum variations $\Delta\mu^{''}_{\rm M}$, $\Delta\mu^{'}_{\rm M}$ and $\Delta\mu^{'}_{\rm m}$ of the relative magnetic permeability $\mu = \mu^{'} - j\mu^{''}$. Then we determine the role played by the temperature.



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