Patent · US Active

Domain wall injector device using fringing fields aided by spin transfer torque

US9583212B2 · kind B2 · utility

1Cited by

4References

27Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Stuart Papworth Parkin · Dohnsen, DE
Timothy Phung · Milpitas, US
Aakash Pushp · Santa Clara, US

Key dates

Filing date	Aug 22, 2014
Grant date	Feb 28, 2017
Priority date	—
Expiry date	Jun 2, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG11C19/0875
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A domain wall injector device uses electrical current passed across an interface between two magnetic regions whose magnetizations are aligned non-collinearly to create a domain wall or a series of domain walls in one of the magnetic regions. The method relies on a combination of innate fringing fields from the magnetic regions and the spin-transfer torque derived from the charge current. The device may be used to store data that are subsequently read out.

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