Epitaxial Magnetic Film Evaluation Techniques.

Abstract

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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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1979
Accession Number
ADA080390

Entities

People

  • Kenneth J. Breeding
  • Philip E. Wigen

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Bubble Memories
  • Computers
  • Coordinate Systems
  • Detection
  • Detectors
  • Differential Equations
  • Domain Walls
  • Laboratory Magnetometers
  • Magnetic Fields
  • Magnetic Films
  • Magnetic Materials
  • Measurement
  • Memory Devices
  • Pattern Recognition
  • Radio Frequency
  • Signal Processing
  • Transmission Lines

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Underwater engineering and Marine Technology.