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Preparation and characterization of high-T{sub c} superconducting thin films with high critical current densities

Miscellaneous:

Abstract

The project was carried out in relation to possible cable and electronics applications of high-T{sub c} materials. Laser ablation was used as the deposition technique because of its stoichiometry conservation. Films were made in the YBa{sub 2}Cu{sub 3}O{sub 7} compound due to its relatively simple stoichiometry compared to other High-T{sub c} compounds. Much attention was paid to the critical current density. A very high critical current density was reached. By using texture analysis by X-ray diffraction, it was found that films with high critical current densities were epitaxial, while films with low critical current densities contained several crystalline orientations. Four techniques for patterning the films were used - photo lithography and wet etch, laser ablation lithography, laser writing and electron beam lithography and ion milling. Sub-micron patterning has been demonstrated without degradation of the superconducting properties. The achieved patterning resolution is sufficient for preparation of many superconducting components. (AB).
Authors:
Publication Date:
Aug 01, 1991
Product Type:
Miscellaneous
Report Number:
NEI-DK-970
Reference Number:
SCA: 360201; 360207; PA: AIX-24:005407; SN: 93000930577
Resource Relation:
Other Information: PBD: Aug 1991
Subject:
36 MATERIALS SCIENCE; SUPERCONDUCTING FILMS; CRITICAL CURRENT; DEPOSITION; BARIUM OXIDES; COPPER OXIDES; CURRENT DENSITY; ELECTRICAL PROPERTIES; HIGH-TC SUPERCONDUCTORS; LASERS; MATERIALS TESTING; PHYSICAL PROPERTIES; YTTRIUM OXIDES; 360201; 360207; PREPARATION AND FABRICATION
OSTI ID:
10118306
Research Organizations:
NKT Research Center A/S, Broendby (Denmark)
Country of Origin:
Denmark
Language:
English
Other Identifying Numbers:
Other: ON: DE93611117; TRN: DK9200126005407
Availability:
OSTI; NTIS; INIS
Submitting Site:
DKN
Size:
[176] p.
Announcement Date:
Jun 30, 2005

Miscellaneous:

Citation Formats

Vase, P. Preparation and characterization of high-T{sub c} superconducting thin films with high critical current densities. Denmark: N. p., 1991. Web.
Vase, P. Preparation and characterization of high-T{sub c} superconducting thin films with high critical current densities. Denmark.
Vase, P. 1991. "Preparation and characterization of high-T{sub c} superconducting thin films with high critical current densities." Denmark.
@misc{etde_10118306,
title = {Preparation and characterization of high-T{sub c} superconducting thin films with high critical current densities}
author = {Vase, P}
abstractNote = {The project was carried out in relation to possible cable and electronics applications of high-T{sub c} materials. Laser ablation was used as the deposition technique because of its stoichiometry conservation. Films were made in the YBa{sub 2}Cu{sub 3}O{sub 7} compound due to its relatively simple stoichiometry compared to other High-T{sub c} compounds. Much attention was paid to the critical current density. A very high critical current density was reached. By using texture analysis by X-ray diffraction, it was found that films with high critical current densities were epitaxial, while films with low critical current densities contained several crystalline orientations. Four techniques for patterning the films were used - photo lithography and wet etch, laser ablation lithography, laser writing and electron beam lithography and ion milling. Sub-micron patterning has been demonstrated without degradation of the superconducting properties. The achieved patterning resolution is sufficient for preparation of many superconducting components. (AB).}
place = {Denmark}
year = {1991}
month = {Aug}
}