Fabrication of Material and Devices for Very High Density Information Storage.
Abstract
An ion beam deposition system was purchased and utilized for research on magnetic materials and devices for high density magnetic information storage. Initial work was carried out on the deposition of permalloy and the deposition of magnetic oxides. The work on permalloy revealed that ion beam deposited materials generally had smaller grain size and lower coercivity than R.F. sputtered materials. It was also found that the grain size and coercivity of ion beam deposited materials increased of a second ion gun were used to bombard the substrate during the deposition process. This work is being continued with support from other sources. The work on magnetic oxides was begun with the deposition of cobalt ferrite. X ray diffraction measurements indicate the material deposited was amorphous and exhibited a hard axis of anisotropy perpendicular to the plane of the film. This work is also being continued with support from other sources.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 24, 1986
- Accession Number
- ADA174548
Entities
People
- Ching-hsing Huang
- Chris Bowman
- David Thuel
- Mark H. Kryder
Organizations
- Carnegie Mellon University