Numéro
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
Page(s) C8-1997 - C8-1998
DOI https://doi.org/10.1051/jphyscol:19888906
Proceedings of the International Conference on Magnetism

J. Phys. Colloques 49 (1988) C8-1997-C8-1998

DOI: 10.1051/jphyscol:19888906

INITIAL SLOPE OF THE HYSTERESIS CURVE

G. J. Gerritsma, M. T. H. C. W. Stam, J. C. Lodder et Th. J. A. Popma

University of Twente, P.O.B. 217, 7500 AE Enschede, The Netherlands


Abstract
An analytical expression for the initial slope T of the hysteresis curve is derived for a stripe domain structure in a thin magnetic film, giving that T-1 is proportional to t-1/2 (t = film thickness). This is confirmed by measurements on RF sputtered CoCr films with 20 nm ≤ t ≤ 950 nm.