Charging effect in high-[Tc] superconducting thin films. Final report, 1 November 1991-31 December 1993

Technical Report · Sat Jan 01 00:00:00 EST 1994

OSTI ID:7046477

Sobolewski, R

Experimental research has been conducted to elucidate the basic physics and possible applications of the charging effect in partially oxygen-depleted YBa(2)Cu(3)O(6+x) (YBCO) thin films. A novel laser-writing technique, suitable for patterning and fabrication of monolithic YBCO electronic devices has been developed. The technique allows to define superconducting and insulating regions in the same sample and is based on local laser beam heating of the epitaxial YBCO film in either the presence or the absence of an oxygen atmosphere. Several test structures for the charging-effect experiments have been fabricated using laser writing. The structures are fully monolithic with a partially oxygen-depleted channel and oxygen-rich source and drain electrodes. The devices were tested and showed a substantial charging effect, which the authors associate with the charge-transfer effects related to electric-field-enhanced changes of the crystalline order in oxygen-deficient YBCO. They have also fabricated and successfully tested laser-written YBCO microwave transmission structures and resonators. The developed devices represent a new approach for the high-temperature superconducting electronics, which consists of exploiting contrasting properties of the oxygen-poor and oxygen-rich YBCO phases to design novel devices. Superconducting electronics, High temperature superconductivity, Charging effect, Laser-writing technique, Superconducting three-terminal devices.

• Research Organization: Rochester Univ., NY (United States). Dept. of Electrical Engineering
• OSTI ID: 7046477
• Report Number(s): AD-A-277265/5/XAB; CNN: F49620-92-J-00075
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ELECTRONIC CIRCUITS
FABRICATION
HIGH-TC SUPERCONDUCTORS
BARIUM OXIDES
COPPER OXIDES
PROGRESS REPORT
SUPERCONDUCTING FILMS
YTTRIUM OXIDES
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
DOCUMENT TYPES
FILMS
OXIDES
OXYGEN COMPOUNDS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication