Process for the production by catalysis of a layer having a high magnetic anisotropy in a ferrimagnetic garnet
US4624858A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1985 |
| Grant date | Nov 25, 1986 |
| Priority date | — |
| Expiry date | Oct 23, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F41/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Process for producing a ferrimagnetic garnet layer having a high magnetic anisotropy on an amagnetic substrate, wherein it comprises the stages of forming at least one ferrimagnetic garnet layer by epitaxy from the amagnetic substrate, implanting ions in the ferrimagnetic garnet layer in order to produce defects therein, depositing on the ferrimagnetic garnet layer a metal layer able to activate and diffuse hydrogen into said garnet layer and heating under a hydrogen atmosphere of the complete structure, in order to bring about the diffusion of hydrogen into the ferrimagnetic garnet layer. Application to the production of bubble stores with non-implanted propagation patterns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.