Magnetic element with switchable domain structure
US7102477B2 · kind B2 · utility
5Cited by
2References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 7, 2001 |
| Grant date | Sep 5, 2006 |
| Priority date | — |
| Expiry date | Jul 17, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C19/0808
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic element comprises a closed loop of ferromagnetic material having an even number of magnetic domains of opposite sense. The magnetisation within the domains is in a circumferential direction, and the domains have leading and trailing walls extending from the inside to the outside of the loop. The magnetic element has a geometry such that there are at least two stable equilibrium domain configurations in which the domain walls are confined in predetermined portions of the loop and wherein the element is switchable between the stable configurations upon the application of a external magnetic field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.