Contrails
The goal of the Contrails project is to help preserve and disseminate the technical record of 20th century aerospace research, highlighting in particular the research endeavors of the Illinois Tech community.

Observation of Magnetic Domains by Means of the Kerr Effect

Report Number: ASD TDR 62-683
Author(s): Axel M. Stoffel and Karl J. Strnat
Corporate Author: Electronic and Magnetic Materials Section, Physics Laboratory
Laboratory: Directorate of Materials and Processes
Date of Publication: 1962-09
Pages: 13
Contract: Laboratory Research - No Contract
Project: 7371
Task: 737103
AD Number: AD0288288

Abstract:
An experimental apparatus was built which employs the magneto-optical Kerr ef ect for visual observation and photographic recording of magnetic domain patterns. The main objective of this work was to familiarize the investigators with the problems of the Kerr technique and thus provide the basis for designing a more sophisticated apparatus. This report dicusses the Kerr effect and its application to the study of magnetic domains and analyzes some of the optical problems incurred in this application. It describes the experimental set-up and presents pictures of domain structures observed on a thin film of Permalloy.

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