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Title: Growth of TlBa{sub 2}Ca{sub 2}Cu{sub 3}O{sub 9{minus}y} superconducting films with local biaxial alignment extending up to 5 mm on Ag substrates using a spray pyrolysis technique

Abstract

We report superconducting properties of TlBa{sub 2}Ca{sub 2}Cu{sub 3}O{sub 9{minus}y} (Tl-1223) thick films grown on smooth and rough Ag substrates. Thallium-free precursor films of the type Ba{sub 2}Ca{sub 2}Cu{sub 3}Ag{sub 0.37}O{sub 7} were deposited on Ag substrates using a spray pyrolysis technique followed by post-thallination in a two-zone furnace. XRD results showed the presence of a c-axis aligned Tl-1223 films and some degree of local in-plane texture (often referred as a colony microstructure). The microstructure of the Ag surface dictates the growth behavior of Tl-1223 films. The transport critical-current densities (J{sub c}) for Tl-1223 films grown on smooth and rough Ag substrates were {approximately}65000 A/cm{sup 2} and {approximately}37000 A/cm{sup 2}, respectively, at 77 K and zero field. The films grown on smooth Ag substrates were strongly linked and had good in-field properties with a J{sub c} value of {approximately}10{sup 4} A/cm{sup 2} at 77 K and 0.5 T. {copyright} {ital 1997 Materials Research Society.}

Authors:
 [1]; ; ;  [2];  [1];  [2];  [3]
  1. Chemical and Analytical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)
  2. Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)
  3. Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory
OSTI Identifier:
544237
DOE Contract Number:  
AC05-96OR22464
Resource Type:
Journal Article
Journal Name:
Journal of Materials Research
Additional Journal Information:
Journal Volume: 12; Journal Issue: 3; Other Information: PBD: Mar 1997
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; SUPERCONDUCTING FILMS; CRYSTAL GROWTH; HIGH-TC SUPERCONDUCTORS; CRITICAL CURRENT; SUBSTRATES; SILVER; THALLIUM OXIDES; BARIUM OXIDES; CALCIUM OXIDES; COPPER OXIDES; MICROSTRUCTURE; TEXTURE

Citation Formats

Paranthaman, M, List, F A, Goyal, A, Specht, E D, Vallet, C E, Kroeger, D M, and Christen, D K. Growth of TlBa{sub 2}Ca{sub 2}Cu{sub 3}O{sub 9{minus}y} superconducting films with local biaxial alignment extending up to 5 mm on Ag substrates using a spray pyrolysis technique. United States: N. p., 1997. Web. doi:10.1557/JMR.1997.0094.
Paranthaman, M, List, F A, Goyal, A, Specht, E D, Vallet, C E, Kroeger, D M, & Christen, D K. Growth of TlBa{sub 2}Ca{sub 2}Cu{sub 3}O{sub 9{minus}y} superconducting films with local biaxial alignment extending up to 5 mm on Ag substrates using a spray pyrolysis technique. United States. doi:10.1557/JMR.1997.0094.
Paranthaman, M, List, F A, Goyal, A, Specht, E D, Vallet, C E, Kroeger, D M, and Christen, D K. Sat . "Growth of TlBa{sub 2}Ca{sub 2}Cu{sub 3}O{sub 9{minus}y} superconducting films with local biaxial alignment extending up to 5 mm on Ag substrates using a spray pyrolysis technique". United States. doi:10.1557/JMR.1997.0094.
@article{osti_544237,
title = {Growth of TlBa{sub 2}Ca{sub 2}Cu{sub 3}O{sub 9{minus}y} superconducting films with local biaxial alignment extending up to 5 mm on Ag substrates using a spray pyrolysis technique},
author = {Paranthaman, M and List, F A and Goyal, A and Specht, E D and Vallet, C E and Kroeger, D M and Christen, D K},
abstractNote = {We report superconducting properties of TlBa{sub 2}Ca{sub 2}Cu{sub 3}O{sub 9{minus}y} (Tl-1223) thick films grown on smooth and rough Ag substrates. Thallium-free precursor films of the type Ba{sub 2}Ca{sub 2}Cu{sub 3}Ag{sub 0.37}O{sub 7} were deposited on Ag substrates using a spray pyrolysis technique followed by post-thallination in a two-zone furnace. XRD results showed the presence of a c-axis aligned Tl-1223 films and some degree of local in-plane texture (often referred as a colony microstructure). The microstructure of the Ag surface dictates the growth behavior of Tl-1223 films. The transport critical-current densities (J{sub c}) for Tl-1223 films grown on smooth and rough Ag substrates were {approximately}65000 A/cm{sup 2} and {approximately}37000 A/cm{sup 2}, respectively, at 77 K and zero field. The films grown on smooth Ag substrates were strongly linked and had good in-field properties with a J{sub c} value of {approximately}10{sup 4} A/cm{sup 2} at 77 K and 0.5 T. {copyright} {ital 1997 Materials Research Society.}},
doi = {10.1557/JMR.1997.0094},
journal = {Journal of Materials Research},
number = 3,
volume = 12,
place = {United States},
year = {1997},
month = {3}
}