Patent · US Expired

Method for producing a superconductor layer of YBa.sub.2 Cu.sub.3 O.sub.7 on a sapphire substrate

US5283233A · kind A · utility

0Cited by

2References

4Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Harald Schmidt · Georgetown, CA
Klaudia Hradil · Munich, DE
Wolfram Wersing · Tauberbischofsheim, DE

Key dates

Filing date	Oct 3, 1991
Grant date	Feb 1, 1994
Priority date	—
Expiry date	Oct 3, 2011

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S505/731
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A method for producing a superconducting layer of YBa.sub.2 CU.sub.3 O.sub.7 on a sapphire substrate utilizes the steps of epitaxially growing an intermediate layer that at least contains a yttrium-stabilized zirconium oxide layer directly on the substrate, and then epitaxially growing a superconducting layer on the intermediate layer. In one embodiment, the step of growing the intermediate layer grows two sub-layers, with the first sub-layer being a yttrium-stabilized zirconium oxide layer and a second sub-layer being a yttrium oxide layer applied onto the first sub-layer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.