Patents by Inventor James M. Rondinelli

James M. Rondinelli 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).

  • Noncentrosymmetric metal electrodes for ferroic devices
    Patent number: 10186595
    Abstract: A ferroelectric heterostructure may comprise a ferroelectric layer comprising a ferroelectric material and a first electrode layer comprising a first noncentrosymmetric metal, the first electrode layer disposed on the ferroelectric layer to form a ferroelectric-first electrode interface, wherein the ferroelectric layer is characterized by exhibiting an electric polarization and the first electrode layer is characterized by exhibiting polar ionic displacements and further wherein, a component of the polar ionic displacements of the first electrode layer is parallel to a component of the electric polarization of the ferroelectric layer.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: January 22, 2019
    Assignee: NORTHWESTERN UNIVERSITY
    Inventors: James M. Rondinelli, Danilo Puggioni
  • NONCENTROSYMMETRIC METAL ELECTRODES FOR FERROIC DEVICES
    Publication number: 20180040711
    Abstract: A ferroelectric heterostructure may comprise a ferroelectric layer comprising a ferroelectric material and a first electrode layer comprising a first noncentrosymmetric metal, the first electrode layer disposed on the ferroelectric layer to form a ferroelectric-first electrode interface, wherein the ferroelectric layer is characterized by exhibiting an electric polarization and the first electrode layer is characterized by exhibiting polar ionic displacements and further wherein, a component of the polar ionic displacements of the first electrode layer is parallel to a component of the electric polarization of the ferroelectric layer.
    Type: Application
    Filed: August 2, 2017
    Publication date: February 8, 2018
    Inventors: James M. Rondinelli, Danilo Puggioni