British Universities Film & Video Council

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Ferromagnetic Domains of Bulk Crystals

Synopsis
By means of the magneto-optic Kerr effect, WEISS domains (tiny crystal parts) can be made visible and their changes followed as a magnetic field is set up. Simple magnetic reversal processes, caused by the displacement of Bloch walls, on the surface of a (100)-FeSi monocrystal are shown, as well as the complex processes on the face of a square monocrystal, and the linking of flow-ring systems, as saturation approaches. Another section of the film proves how the zone structure in the demagnetized state is a function of the frequency of the demagnetizing field. An Encyclopaedia Cinematographic film.
Language
English
Country
Germany
Medium
Film; Film. 16mm. st. b&w. 9 min.
Technical information
Black-and-white / Sound
Year of production
1968
Availability
Hire
Documentation
Accompanying booklet in German.
Uses
Illustrative material for students of metallurgy.*
Subjects
Engineering
Keywords
crystals; Ferromagnetic materials; magnetism; metals

Credits

Writer
B Passon
Contributor
G Hummel

Distribution Formats

Type
Film
Format
16mm

Production Company

Name

Institut für den Wissenschaftlichen Film

Distributor

Name

Higher Education Film & Video Library

Email
services@bufvc.ac.uk
Web
http://bufvc.ac. External site opens in new window
Phone
020 7393 1503
Fax
020 7393 1555
Address
c/o British Universities Film & Video Council
77 Wells Street
London
W1T 3QJ
Notes
Catalogue available from British Universities Film & Video Council.

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