RESEARCH ON THE DEPOSITION OF MAGNETIC INTERMETALLIC COMPOUNDS IN THIN FILMS.
Abstract
A process for the vacuum deposition of thin films of intermetallic compounds of cobalt and yttrium, samarium, or neodymium, was developed. The process involved the codeposition of elemental vapors that were separately evaporated from adjacent sources. Changes in frequency of oscillating quartz crystals placed in the path of the evaporating metals, were used as monitors of the amount of deposition that had occurred, and allowed corrective control of the evaporation rates. Thin films of the desired stoichiometric compositions, Co5R, were produced in an extensive series of sequential experiments, but the structural compositions of the films were not well identified, since x-ray diffraction analyses did not indicate crystallinity. Samples of samarium-cobalt of varying compositions have been submitted to the Air Force Materials Laboratory where magneto-optic effects will be studied. Yttrium-cobalt and neodymium-cobalt films are being prepared and will be submitted before termination of the contract period. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1966
- Accession Number
- AD0800836
Entities
People
- Richard W. Hardt
Organizations
- General Electric