Accession Number:

AD0763224

Title:

Single Crystal Cylindrical Magnetic Domain Materials for Memory Applications.

Descriptive Note:

Semi-annual rept. 1 Jun 72-31 Mar 73,

Corporate Author:

AUTONETICS ANAHEIM CALIF

Personal Author(s):

Report Date:

1973-07-01

Pagination or Media Count:

158.0

Abstract:

, SILICON DIOXIDE, INTEGRAL EQUATIONSYTTRIUM IRON GARNETS, MAGNETIC BUBBLE DOMAINS, MAGNETIC DOMAINS, MAGNETIC FILMS, PERMALLOYS, FREDHOLM EQUATIONS, THIN FILMSThe first part of the report describes a two-dimensional mathematical model currently being used to describe field access bubble domain propagation. The model is based upon a continuous in-plane magnetization distribution in the permalloy which is determined by minimizing the system energy-assumed to consist of Zeeman and Magnetostatic energy contributions. The numerical techniques required to solve the resulting coupled Fredholm integral equations are described as well as the complete computer program used to analyze propagation in realistic permalloy patterns. Results are presented and discussed for bubble propagation along a 90 degree Chevron, a T-bar and a Y-bar. The second part of this report describes the design and construction of a high-frequency multiple-bar-Chevron shift register. Each of the individual components - generator, track, detector, annihilator - are described along with the experiments used to design them. Modified author abstract

Subject Categories:

  • Computer Hardware

Distribution Statement:

APPROVED FOR PUBLIC RELEASE