The model for the magnetization of current carrying amorphous ferromagnets

Scientific paper - Original scientific paper

• Author: Stjepan Sabolek; MBZ: 195214
• Author's institution: University of Zagreb; Faculty of Science; (Department of Physics)
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract (english)

A recent model for the explanation of the decrease of coercive field H_c and the core loss E in amorphous ribbons carrying a direct current J_d has been extended in order to account for the effects of an alternating core current J. The model predicts a linear decrease of H_c with the amplitude J_0 of J and the achievement of H_c=0 for J_0 which is sufficient in order to release the domain walls responsible for H_c in the absence of the drive field H. The actual shape and frequency of the core current pulses appear to be immaterial as long as the condition J=J_0 at H = 0 is fulfilled. The accurate measurements performed on the stress-free Co_70.3Fe_4.7Si_15B_10 and twisted Fe_80B_20 ribbons confirm the validity of the model. Some applications of the phenomenon are briefly discussed.

• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review
• Publication version: Published version
• Journal title: Fizika A
• Numbering: vol. 2, no. 2, pp. 101-110
• p-ISSN: 1330-0008
• URN:NBN: urn:nbn:hr:217:031745
• Publication: 1993
• Document URL: http://fizika.hfd.hr/fizika_a/av93/a2p101.htm
• Type of resource: Text
• Access conditions: Open access
• Created on: 2019-10-02 20:27:27