Patents by Inventor Stuart Stephen P. Parkin

Stuart Stephen P. Parkin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Magnetic tunnel junctions with high tunneling magnetoresistance using non-bcc magnetic materials
    Patent number: 7300711
    Abstract: Magnetic material, which is not normally bcc-structured under ambient conditions, is induced into becoming bcc as a result of its proximity to a suitable templating material, such as a bcc-structured underlayer that is in contact with the magnetic material. The magnetic material, in combination with a tunnel barrier and other elements, forms a magnetic tunneling device, such as a magnetic tunnel junction that may have a tunneling magnetoresistance of 100% or more. Suitable tunnel barriers include MgO and Mg—ZnO, and the magnetic material may be Co. The templating material may include such elements as V, Cr, Nb, Mo, and W, or the tunnel barrier MgO may itself serve as the templating material.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: November 27, 2007
    Assignee: International Business Machines Corporation
    Inventor: Stuart Stephen P. Parkin