High-T sub c superconductor quantum interference devices

Patent · Tue Dec 24 00:00:00 EST 1991

OSTI ID:5589293

This patent describes a superconductive quantum interferometric device for sensing a characteristic of a magnetic field. It comprises a substrate having a surface, the substrate being selected from the group which consists of strontium titanate, aluminum oxide, sapphire, ZrO{sub 2} and mixtures thereof; a coating of MgO on the surface of the substrate; two identical thin-strip films of a high-critical temperature superconductor on the coating, each of the films having a pair of mutually parallel arms in the form of superconductor strips extending toward and aligned with super conductor strips forming corresponding arms of the other thin-strip film, and a crossbar strip connecting the arms of each thin-strip film at right angles to the arms, the high-critical-temperature superconductor being selected from the group which consists of yttrium-barium-calcium-copper-oxides, bismuth-strontium-calcium-copper-oxides, thallium-barium-copper-oxides, thallium-barium-calcium-copper-oxides, barium oxide: potassium oxide: bismuth oxides, and calcium oxide: zinc oxide: iron oxides; and insulating films on the coating between corresponding free ends of the arms thin-strip films, the insulating films being composed of a material selected from the group which consists of silicon dioxide, silicon nitride, magnesium oxide and mixture thereof.

• Assignee: International Superconductor Corp., Riverdale, NY (United States)
• Patent Number(s): US 5075283; A
• Application Number: PPN: US 7-321262
• OSTI ID: 5589293
• Resource Relation: Patent File Date: 9 Mar 1989
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
MAGNETIC FIELDS
SQUID DEVICES
HIGH-TC SUPERCONDUCTORS
BARIUM OXIDES
BISMUTH OXIDES
CALCIUM OXIDES
COPPER OXIDES
IRON OXIDES
MAGNESIUM OXIDES
POTASSIUM OXIDES
STRONTIUM OXIDES
SUPERCONDUCTING FILMS
THALLIUM OXIDES
TRANSITION TEMPERATURE
YTTRIUM OXIDES
ZINC OXIDES
ZIRCONIUM OXIDES
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BISMUTH COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
ELECTRONIC EQUIPMENT
EQUIPMENT
FILMS
FLUXMETERS
IRON COMPOUNDS
MAGNESIUM COMPOUNDS
MEASURING INSTRUMENTS
MICROWAVE EQUIPMENT
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POTASSIUM COMPOUNDS
STRONTIUM COMPOUNDS
SUPERCONDUCTING DEVICES
SUPERCONDUCTORS
THALLIUM COMPOUNDS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
ZINC COMPOUNDS
ZIRCONIUM COMPOUNDS
665412* - Superconducting Devices- (1992-)