Invention Grant
- Patent Title: Domain wall motion in perpendicularly magnetized wires having artificial antiferromagnetically coupled multilayers with engineered interfaces
- Patent Title (中): 垂直磁化线中的畴壁运动具有具有工程界面的人造反铁磁耦合多层
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Application No.: US13543090Application Date: 2012-07-06
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Publication No.: US08687415B2Publication Date: 2014-04-01
- Inventor: Stuart Stephen Papworth Parkin , Luc Thomas , See-Hun Yang
- Applicant: Stuart Stephen Papworth Parkin , Luc Thomas , See-Hun Yang
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Daniel E. Johnson
- Main IPC: G11C11/14
- IPC: G11C11/14

Abstract:
Magnetic wires that include two antiferromagnetically coupled magnetic regions show improved domain wall motion properties, when the domain walls are driven by pulses of electrical current. The magnetic regions preferably include Co, Ni, and Pt and exhibit perpendicular magnetic anisotropy, thereby supporting the propagation of narrow domain walls. The direction of motion of the domain walls can be influenced by the order in which the wire's layers are arranged.
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