Numéro
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
Page(s) C8-1703 - C8-1704
DOI https://doi.org/10.1051/jphyscol:19888773
Proceedings of the International Conference on Magnetism

J. Phys. Colloques 49 (1988) C8-1703-C8-1704

DOI: 10.1051/jphyscol:19888773

MAGNETORESISTANCE AND MAGNETIZATION STUDIES OF ULTRATHIN CO-Au SANDWICHES AND BILAYERS

P. Beauvillain1, P. Bruno1, C. Chappert1, C. Dupas1, F. Trigui1, E. Vélu1 et D. Renard2

1  Institut d'Electronique Fondamentale, CNRS UA 022, Bât. 220, Université Paris Sud F-91405 Orsay Cedex, France
2  IOTA, CNRS UA 014, Bât. 503, Université Paris Sud F-91405, Orsay Cedex, France


Abstract
We compare the hysteresis loops of ultrathin Co films sandwiched in gold obtained by SQUID magnetometry and by magnetoresistance (MR) measurements. The agreement is very good for most of the samples. The MR appears as a very simple method for the determination of coercive fields of these magnetic films.