Control method of magnetic anisotropy and device utilizing the control method
US4600488A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1985 |
| Grant date | Jul 15, 1986 |
| Priority date | — |
| Expiry date | Jan 14, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F41/18
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There have been known various methods for controlling the magnetic anisotropy of a magnetic film with a magnetic field being applied thereto. In accordance with the present invention, the magnetic anisotropy is controlled by implanting ions into the magnetic film while applying a magnetic field thereto. The direction for applying the magnetic field can be arbitrarily selected, for example, along an inplane direction of the magnetic film and along a direction vertical thereto. The magnetic anisotropy can be controlled only in the desired areas by limiting the areas to which ions are implanted with a mask disposed on the magnetic film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.