Title: Memristor comprising film with comb-like structure of nanocolumns of metal oxide embedded in a metal oxide matrix

Abstract

Films having a comb-like structure of nanocolumns of Sm.sub.2O.sub.3 embedded in a SrTiO.sub.3 formed spontaneously on a substrate surface by pulsed laser deposition. In an embodiment, the nanocolumns had a width of about 20 nm with spaces between nanocolumns of about 10 nm. The films exhibited memristive behavior, and were extremely uniform and tunable. Oxygen deficiencies were located at vertical interfaces between the nanocolumns and the matrix. The substrates may be single-layered or multilayered.

Inventors:

Driscoll, Judith L; Lee, ShinBuhm; Jia, Quanxi

Issue Date:

Tue May 12 00:00:00 EDT 2015

Research Org.:

Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1179223

Patent Number(s):

9029985

Application Number:

14/282,910

Assignee:

Los Alamos National Security, LLC (Los Alamos, NM)

Patent Classifications (CPCs):

C - CHEMISTRY C09 - DYES C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE

G - PHYSICS G09 - EDUCATION G09G - ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION

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C - CHEMISTRY C09 - DYES C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE

C09K11/02 - Use of particular materials as binders, particle coatings or suspension media therefor

G - PHYSICS G09 - EDUCATION G09G - ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION

G09G2300/0842 - forming a memory circuit, e.g. a dynamic memory with one capacitor

G - PHYSICS G11 - INFORMATION STORAGE G11C - STATIC STORES

G11C13/0007 - {comprising metal oxide memory material, e.g. perovskites}

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DOE Contract Number:  

AC52-06NA25396

Resource Type:

Patent

Resource Relation:

Patent File Date: 2014 May 20

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY