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Transport Critical Currents in Spray Pyrolyzed Films of TlBa sub 2 Ca sub 2 Cu sub 3 O sub z on Polycrystalline Zirconia Substrates
Large critical currents with a relatively weak magnetic field dependence are obtained in thick films of TlBa sub 2 Ca sub 2 Cu sub 3 O sub z . Transport measurements indicate J sub c > 10 exp 5 A/cm exp 2 at 77K, zero field, and J sub c > 10 exp 4 at 60K in a 2 T field applied along the c-axis...
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| Published in: | Applied physics letters 1992-08, Vol.61 (5), p.610-612 |
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| Main Authors: | , , , , , , , |
| Format: | Article |
| Language: | English |
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| container_end_page | 612 |
| container_issue | 5 |
| container_start_page | 610 |
| container_title | Applied physics letters |
| container_volume | 61 |
| creator | Tkaczyk, J E DeLuca, J A Karas, P L Bednarczyk, P J Garbauskas, M F Arendt, R H Lay, K W Moodera, J S |
| description | Large critical currents with a relatively weak magnetic field dependence are obtained in thick films of TlBa sub 2 Ca sub 2 Cu sub 3 O sub z . Transport measurements indicate J sub c > 10 exp 5 A/cm exp 2 at 77K, zero field, and J sub c > 10 exp 4 at 60K in a 2 T field applied along the c-axis. The observed behavior is attributed to a large degree of uniaxial alignment of platelike grains, and to superior intragranular flux pinning. These results are consistent with recent theories concerning the nature of vortices in highly anisotropic (layered) superconductors and "brick wall" models of intergranular current transport. |
| doi_str_mv | 10.1063/1.107852 |
| format | article |
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Transport measurements indicate J sub c > 10 exp 5 A/cm exp 2 at 77K, zero field, and J sub c > 10 exp 4 at 60K in a 2 T field applied along the c-axis. The observed behavior is attributed to a large degree of uniaxial alignment of platelike grains, and to superior intragranular flux pinning. 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Transport measurements indicate J sub c > 10 exp 5 A/cm exp 2 at 77K, zero field, and J sub c > 10 exp 4 at 60K in a 2 T field applied along the c-axis. The observed behavior is attributed to a large degree of uniaxial alignment of platelike grains, and to superior intragranular flux pinning. 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DeLuca, J A ; Karas, P L ; Bednarczyk, P J ; Garbauskas, M F ; Arendt, R H ; Lay, K W ; Moodera, J S</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-o580-42105b43244f06b211dbfa0c9724dbbf130a7ec0d662c52a41885d69523752403</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1992</creationdate><topic>360207 - Ceramics, Cermets, & Refractories- Superconducting Properties- (1992-)</topic><topic>ALIGNMENT</topic><topic>ALKALINE EARTH METAL COMPOUNDS</topic><topic>BARIUM COMPOUNDS</topic><topic>BARIUM OXIDES</topic><topic>CALCIUM COMPOUNDS</topic><topic>CALCIUM OXIDES</topic><topic>CHALCOGENIDES</topic><topic>CHEMICAL REACTIONS</topic><topic>COPPER COMPOUNDS</topic><topic>COPPER OXIDES</topic><topic>CRITICAL CURRENT</topic><topic>CRYSTAL STRUCTURE</topic><topic>CRYSTALS</topic><topic>CURRENTS</topic><topic>DECOMPOSITION</topic><topic>DEPOSITION</topic><topic>ELECTRIC CURRENTS</topic><topic>GRAIN BOUNDARIES</topic><topic>GRANULAR MATERIALS</topic><topic>HIGH-TC SUPERCONDUCTORS</topic><topic>MAGNETIC FLUX</topic><topic>MATERIALS</topic><topic>MATERIALS SCIENCE</topic><topic>MICROSTRUCTURE</topic><topic>MIXED STATE</topic><topic>OXIDES</topic><topic>OXYGEN COMPOUNDS</topic><topic>POLYCRYSTALS</topic><topic>PYROLYSIS</topic><topic>SPRAY COATING</topic><topic>SUPERCONDUCTORS</topic><topic>SURFACE COATING</topic><topic>THALLIUM COMPOUNDS</topic><topic>THALLIUM OXIDES</topic><topic>THERMOCHEMICAL PROCESSES</topic><topic>TRANSITION ELEMENT COMPOUNDS</topic><topic>VORTICES</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tkaczyk, J E</creatorcontrib><creatorcontrib>DeLuca, J A</creatorcontrib><creatorcontrib>Karas, P L</creatorcontrib><creatorcontrib>Bednarczyk, P J</creatorcontrib><creatorcontrib>Garbauskas, M F</creatorcontrib><creatorcontrib>Arendt, R H</creatorcontrib><creatorcontrib>Lay, K W</creatorcontrib><creatorcontrib>Moodera, J S</creatorcontrib><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>OSTI.GOV</collection><jtitle>Applied physics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tkaczyk, J E</au><au>DeLuca, J A</au><au>Karas, P L</au><au>Bednarczyk, P J</au><au>Garbauskas, M F</au><au>Arendt, R H</au><au>Lay, K W</au><au>Moodera, J S</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Transport Critical Currents in Spray Pyrolyzed Films of TlBa sub 2 Ca sub 2 Cu sub 3 O sub z on Polycrystalline Zirconia Substrates</atitle><jtitle>Applied physics letters</jtitle><date>1992-08-03</date><risdate>1992</risdate><volume>61</volume><issue>5</issue><spage>610</spage><epage>612</epage><pages>610-612</pages><issn>0003-6951</issn><eissn>1077-3118</eissn><abstract>Large critical currents with a relatively weak magnetic field dependence are obtained in thick films of TlBa sub 2 Ca sub 2 Cu sub 3 O sub z . Transport measurements indicate J sub c > 10 exp 5 A/cm exp 2 at 77K, zero field, and J sub c > 10 exp 4 at 60K in a 2 T field applied along the c-axis. The observed behavior is attributed to a large degree of uniaxial alignment of platelike grains, and to superior intragranular flux pinning. These results are consistent with recent theories concerning the nature of vortices in highly anisotropic (layered) superconductors and "brick wall" models of intergranular current transport.</abstract><cop>United States</cop><doi>10.1063/1.107852</doi><tpages>3</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0003-6951 |
| ispartof | Applied physics letters, 1992-08, Vol.61 (5), p.610-612 |
| issn | 0003-6951 1077-3118 |
| language | eng |
| recordid | cdi_osti_scitechconnect_7293026 |
| source | AIP Digital Archive |
| subjects | 360207 - Ceramics, Cermets, & Refractories- Superconducting Properties- (1992-) ALIGNMENT ALKALINE EARTH METAL COMPOUNDS BARIUM COMPOUNDS BARIUM OXIDES CALCIUM COMPOUNDS CALCIUM OXIDES CHALCOGENIDES CHEMICAL REACTIONS COPPER COMPOUNDS COPPER OXIDES CRITICAL CURRENT CRYSTAL STRUCTURE CRYSTALS CURRENTS DECOMPOSITION DEPOSITION ELECTRIC CURRENTS GRAIN BOUNDARIES GRANULAR MATERIALS HIGH-TC SUPERCONDUCTORS MAGNETIC FLUX MATERIALS MATERIALS SCIENCE MICROSTRUCTURE MIXED STATE OXIDES OXYGEN COMPOUNDS POLYCRYSTALS PYROLYSIS SPRAY COATING SUPERCONDUCTORS SURFACE COATING THALLIUM COMPOUNDS THALLIUM OXIDES THERMOCHEMICAL PROCESSES TRANSITION ELEMENT COMPOUNDS VORTICES |
| title | Transport Critical Currents in Spray Pyrolyzed Films of TlBa sub 2 Ca sub 2 Cu sub 3 O sub z on Polycrystalline Zirconia Substrates |
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