Patent · US Expired

Apparatus and method for switching a magnetic domain lens

US4550389A · kind A · utility

9Cited by
3References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 15, 1983
Grant dateOct 29, 1985
Priority date
Expiry dateAug 15, 2003

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02F1/09
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A magnetic domain device has at least one post element formed from a material that exhibits magnetic domain characteristics and that is positioned on a nonmagnetic substrate material. A pair of electrical drive lines associated with a post element permit coincident current selection of the post element to nucleate a magnetic domain reversal, and an additional current introduced into an adjacent drive line establishes an additive magnetic field to assist the propagation of a domain wall associated with the nucleated magnetic domain reversal so that the direction of magnetization of the post element is reversed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.