Magnetic element with switchable domain structure

Details Magnetic element with switchable domain structure Magnetic element with switchable domain structure

2006-09-05

2006-09-05

Enad, Elvin (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

Reexamination Certificate

active

07102477

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.

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