DocumentCode
1007013
Title
The effect of thermal activation and quantum-mechanical tunneling on the AC-susceptibility
Author
Walter, H.-J. ; Riehemann, W. ; Bökers, A. ; Nembach, E.
Author_Institution
Institut fü Metallforschung der Universität Münster, Federal Republic of Germany
Volume
20
Issue
5
fYear
1984
fDate
9/1/1984 12:00:00 AM
Firstpage
1440
Lastpage
1442
Abstract
The ac-susceptibility χ of a ferromagnetic Ni-base alloy has been measured below 5K. The experimental data can be represented by a relation derived earlier for the unidirectional motion of 180°-domain walls. This relation is based on the assumption that the mobility of 180°-domain walls is governed by their interaction with obstacles present in the specimen. These pinning centers are overcome by combinations of thermal activation and quantum-mechanical tunneling.
Keywords
Magnetic thermal factors; Magnetization processes; Tunnel effect; Coils; Eddy currents; Magnetic domain walls; Magnetic fields; Magnetic materials; Magnetic susceptibility; Shape; Temperature dependence; Tunneling; Voltage;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.1984.1063546
Filename
1063546
Link To Document