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Manganese bismuth films with narrow transfer characteristics for curie-point switching
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Lewicki, G. W. |
| Copyright Year | 1974 |
| Description | Manganese bismuth films having improved characteristics for recording information in analogue form, can be produced by a vacuum deposition of Bi and Mn with an atomic ratio of Mn to Bi between 2 and 3.5 or 1.4 and 1.6, followed by a specialized heat treatment which includes very brief exposure to a temperature between about 275 deg and 300 C. Similar MnBi films can be produced more reliably and reproducibly if the initial Bi layer is annealed prior to deposition of the Mn layer. Such an annealing step renders most other factors of the processing relatively non-critical. Deposition of both initial layers is preferably carried out in a vacuum approaching 10 to the -8th power Torr. |
| File Size | 837694 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19790008507 |
| Archival Resource Key | ark:/13960/t89h0f137 |
| Language | English |
| Publisher Date | 1974-09-24 |
| Access Restriction | Open |
| Subject Keyword | Solid-state Physics Thin Films Magnetic Films Annealing Heat Treatment Data Recording Bismuth Magnetic Fields Vacuum Deposition Curie Temperature Manganese Magnetic Recording Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
