Patents by Inventor Manfred Ramsteiner

Manfred Ramsteiner 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).

  • Spintronic circuit and method of operation therefore
    Patent number: 9361963
    Abstract: The invention relates to a spintronic circuit (10; 11; 15) comprising: a conductive non-magnetic channel (1); —means (2, NM, FM1-FM3) for generating spin polarized electrons (4) in the non-magnetic channel (1) by spin extraction; at least two ferromagnetic contacts (FM1-FM3) arranged along the non-magnetic channel (1) one after another, —means (7, 8, 9) for adjusting the magnetization direction of the ferromagnetic contacts (FM1-FM3); means for propagating the spin polarized electrons (4) along the non-magnetic channel (1); means (5, 6) for measuring the contact resistance of the individual ferromagnetic contacts (FM1-FM3), wherein the contact resistance depends on the relative alignment of the spin polarization direction of the spin polarized electrons (4) in the non-magnetic channel (1) at the ferromagnetic contact (FM1-FM3) and the magnetization direction of the ferromagnetic contact (FM1-FM3).
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: June 7, 2016
    Assignee: Forschungsverbund Berlin e.V.
    Inventors: Yori Manzke, Rouin Farshchi, Manfred Ramsteiner
  • SPINTRONIC CIRCUIT AND METHOD OF OPERATION THEREFORE
    Publication number: 20150221357
    Abstract: The invention relates to a spintronic circuit (10; 11; 15) comprising: a conductive non-magnetic channel (1); —means (2, NM, FM1-FM3) for generating spin polarized electrons (4) in the non-magnetic channel (1) by spin extraction; at least two ferromagnetic contacts (FM1-FM3) arranged along the non-magnetic channel (1) one after another, —means (7, 8, 9) for adjusting the magnetization direction of the ferromagnetic contacts (FM1-FM3); means for propagating the spin polarized electrons (4) along the non-magnetic channel (1); means (5, 6) for measuring the contact resistance of the individual ferromagnetic contacts (FM1-FM3), wherein the contact resistance depends on the relative alignment of the spin polarization direction of the spin polarized electrons (4) in the non-magnetic channel (1) at the ferromagnetic contact (FM1-FM3) and the magnetization direction of the ferromagnetic contact (FM1-FM3).
    Type: Application
    Filed: July 3, 2013
    Publication date: August 6, 2015
    Inventors: Yori Manzke, Rouin Farshchi, Manfred Ramsteiner