NDLI: The Barkhausen effect in single crystals

Content Provider	IEEE Xplore Digital Library
Author	Coyne, P. Kramer, J.
Copyright Year	1965
Abstract	A new description of a single Barkhausen event is proposed. A reinterpretation of the small amplitude domain wall motion equation of Kittel and Galt is used. The model assumes that the Barkhausen Effect originates from the interaction of a moving domain wall with a parabolic potential well which is due to a distribution of defects. Single crystals of 3% Si-Fe served as the test material. Experiments showed that the average pulse half-height width varied linearly with sample thickness for small rectangular samples. Experiments with window frame samples at room temperature and at liquid nitrogen temperature showed that as the temperature was lowered the pulse half-height width increased and the number of pulses observed decreased. The origin of the negative Barkhausen Effect previously reported is explained in terms of pulse shape distortion due to bandwidth limitations.
Sponsorship	IEEE Magnetics Society
Starting Page	1508
Ending Page	1510
Page Count	3
File Size	315396
File Format	PDF
ISSN	00189464
Volume Number	13
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1977-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Space vector pulse width modulation Temperature Crystals Equations Potential well Materials testing Crystalline materials Nitrogen Pulse shaping methods Shape
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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