Epitaxial Magnetic Film Evaluation Techniques.
Interim rept. 1 Nov 77-31 Oct 78,
OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS
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This annual report reviews the progress of the second year of work on magnetic bubble materials and the testing of bubble memory devices. At the Avionics Laboratory, an M-H looper device was built for use in characterizing bubble materials. The device is fully automated employing a Hewlett-Packard calculator system and for use with whole wafers of bubble material. Details of the looper along with samples of data taken are included in the report. At the OSU Physics department, two types of domain wall phenomena were investigated. Propagation of spin waves through domain walls at microwave frequencies were investigated both theoretically and experimentally. Secondly domain wall motion excited with a radio frequency magnetic field oriented parallel to the film plane was studied.
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