Ferromagnetic material and magnetic apparatus employing the ferromagnetic material
US5968677A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1997 |
| Grant date | Oct 19, 1999 |
| Priority date | — |
| Expiry date | Dec 18, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1136
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A ferromagnetic material can be formed in a very small size on the order of an atomic size and is capable of being stably magnetized. The ferromagnetic material comprises basic unit structures each consisting of a first atom (11), a second atom (12) of the same kind as the first atom (11), and a third atom (or atomic group) (13) of the same kind as the first atom (11) or of a kind different from that of the first atom (11). In each of the basic unit structures, the atoms are arranged on a surface of a substrate so that a chemical bond (14) is formed between the first atom or and the third atom or molecule, a chemical bond (14) is formed between the second atom and the third atom or molecule, a chemical bond or an electron path (15) not passing the third atom is formed between the first and the second atom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.