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:
Sep. 03, 2019
Filed:
Nov. 21, 2017
The Government of the United States of America, As Represented BY the Secretary of the Navy, Arlington, VA (US);
Berend T. Jonker, Waldorf, MD (US);
Connie H. Li, Alexandria, VA (US);
Kathleen M. McCreary, Washington, DC (US);
Abstract
The invention relates to heterostructures including a layer of a two-dimensional material placed on a multiferroic layer. An ordered array of differing polarization domains and surface charges in the multiferroic layer produces corresponding domains having differing properties in the two-dimensional material. When the multiferroic layer is ferroelectric, the ferroelectric polarization domains in the layer produce local electric fields that penetrate the two-dimensional material. The local electric fields and surface charges can control the structural phase of the two-dimensional material, which in turn determines whether the two-dimensional material layer is insulating or metallic, has a band gap or no band gap, and whether it is magnetic or non-magnetic. Methods for producing the heterostructures are provided. Devices incorporating the heterostructures are also provided.