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

Patent metadata

Field	Value
Publication number	US-9029985-B2
Application number	US-201414282910-A
Country	US
Kind code	B2
Filing date	May 20, 2014
Priority date	May 23, 2013
Publication date	May 12, 2015
Grant date	May 12, 2015

Abstract

Films having a comb-like structure of nanocolumns of Sm 2 O 3 embedded in a SrTiO 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.

First claim

What is claimed is:

1. An article comprising:
a substrate having a surface;
a film on the surface of said substrate, the film comprising a plurality of aligned nanocolumns of Sm 2 O 3 embedded in a matrix of SrTiO 3 , the film further characterized as comprising a vertical interface separating the nanocolumns from the matrix, said interface further characterized as comprising an oxygen deficient channel suitable for providing said article with memristive properties.…

Assignees

• Los Alamos Nat Security Llc

Inventors

• Driscoll Judith L
• Lee Shinbuhm
• Jia Quanxi

Classifications

• H01L45/147 Primary

  Electricity · mapped topic

• C09K11/02

  Chemistry & Metallurgy · mapped topic

• H01L45/1608

  Electricity · mapped topic

• G11C13/0007

  Physics · mapped topic

• G09G2300/0842

  Physics · mapped topic