Magnetic Bubble Devices.
Abstract
The effect of an in-plane anisotropy on the static and dynamic wall structure has been calculated. The results show that the critical velocity, at which wall motion becomes unstable, will be much higher in films with a strong in-plane anisotropy than in films without this anisotropy. A new method of generating the desired in-plane anisotropy by means of strain is described. The maximum strain that can be achieved is limited primarily by cracking of the substrates, and is approximately 0.0005 for GGG. The theory of wall motion at relatively low speeds has been extended by solving the differential equation for the wall-structure by means of the WKB approximation. The results show that the wall mass is nonuniform, having peaks that are associated with the critical points of the static wall structure. A theory of domain wall motion induced by microwave magnetic fields has been developed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1975
- Accession Number
- ADA013600
Entities
People
- Ernst Schloemann
- H. J. Van Hook
Organizations
- RTX