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

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.

This record has been viewed 153 times.