Amorphous magnetic thin films with highly stable easy axis
US4236946A · kind A · utility
61Cited by
12References
45Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1978 |
| Grant date | Dec 2, 1980 |
| Priority date | — |
| Expiry date | Mar 13, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/90
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A sputtered thin film of an amorphous material composed of a magnetic transition metal X and element Y plus possibly an element Z has low coercivity for domains in the plane, has a well defined and stable magnetic easy axis which is extremely stable without heating above the Curie point, with a high and flat value of permeability from low frequencies to greater than 10 megahertz. Metal X can include at least one of Fe, Ni, and Co. Element Y can include at least one of Si and B. Element Z can be included composed of Cr, for example.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.