J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988Proceedings of the International Conference on Magnetism
|Page(s)||C8-1921 - C8-1922|
J. Phys. Colloques 49 (1988) C8-1921-C8-1922
ENTROPY PRODUCTION IN A MAGNETIC HYSTERESIS CYCLETakao Iwata
College of General Education, Tohoku University, Kawauchi, Sendai 980, Japan
Magnetothermal effect associated heat flow and eddy current loss serve as an additional entropy source in the magnetization process. Based on simplified models, it is shown that, though these effects are included, losses and the entropy production in a hysteresis cycle still obey Warburg's law or its simple version.