Source of spin polarized electrons using an emissive micropoint cathode
US4835438A · kind A · utility
44Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1987 |
| Grant date | May 30, 1989 |
| Priority date | — |
| Expiry date | Nov 25, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2203/0296
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Spin polarized electron source using an emissive micropoint cathode. At least one portion of each micropoint, including the top of the latter, is ferromagnetic, so that the electrons emitted by the cathode are spin polarized in a given direction, when the portion is subject to a magnetic field parallel to the given direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.