The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 10, 2007
Filed:
Jan. 11, 2006
Mathias Klaeui, Kreuzlingen, CH;
Rolf Allenspach, Adliswil, CH;
Pierre-olivier Jubert, San Jose, CA (US);
Mathias Klaeui, Kreuzlingen, CH;
Rolf Allenspach, Adliswil, CH;
Pierre-Olivier Jubert, San Jose, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A memory element, logic element or sensor element is provided, which element comprises a switchable first magnetic component exhibiting a ferromagnetic or ferrimagnetic behaviour and comprising at least two magnetic domains with different magnetization directions and a domain wall between the magnetic domains. The element has electrodes operable to induce an electric current which at least partially flows through the domain wall with a current density high enough to cause the domain wall to reversibly propagate within the magnetic component. The first magnetic component may belong to a layered system further including a second magnetic component with a fixed magnetization and a non-magnetic spacer layer arranged between the first and second magnetic component. In such a layered system, the electrical resistance may depend on the relative orientation of the magnetization directions of the first and second magnetic component, due to the GMR or TMR effect.