The memory effect for dynamic behaviour: the case of a perfect ferromagnet

Publisher Website
Google Scholar
Abstract
In ferromagnets, irreversible changes in the domain topography induce memory effect and hysteresis properties for the macroscopic behaviour. The author investigates the connection between the dynamic behaviour and the domain structure. In the simple case of a perfect ferromagnet with a regular array of up and down domains, he establishes here that the relaxation rate is inversely proportional to the mean size of domains. The author then considers the memory effect that this dependence implies for the dynamic behaviour.