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Fabrication of magnetic tunnel junctions with epitaxial and textured ferromagnetic layers

United States Patent

November 11, 2008
View the Complete Patent at the US Patent & Trademark Office
This invention relates to magnetic tunnel junctions and methods for making the magnetic tunnel junctions. The magnetic tunnel junctions include a tunnel barrier oxide layer sandwiched between two ferromagnetic layers both of which are epitaxial or textured with respect to the underlying substrate upon which the magnetic tunnel junctions are grown. The magnetic tunnel junctions provide improved magnetic properties, sharper interfaces and few defects.
Chang; Y. Austin (Middleton, WI), Yang; Jianhua Joshua (Madison, WI)
Wisconsin Alumni Research Foundation (Madison, WI)
11/ 169,320
June 28, 2005
STATEMENT OF GOVERNMENT RIGHTS Research funding was provided for this invention by the United States Department of Energy under grant No. DE-FG02-99ER45777. The United States government has certain rights in this invention.