Lanthanum-substituted Y-Ba-Cu-O superconductors synthesized at elevated oxygen pressures
Journal Article
·
· Applied Physics Letters; (USA)
- 2-300 Lawrence Berkeley Laboratory, Berkeley, CA (USA)
Lanthanum substitution in the Y-Ba-Cu-O system at elevated {ital P}(O{sub 2}) results in superconducting compositions which throw interesting light on the effects of nonisovalent substitution in a Y-Ba-Cu-O system. Like Ca substitution, La substitution also shifts the phase formation boundary between 123, 247, and 124 phases to higher {ital P}(O{sub 2}), and stabilizes a tetragonal 123 structure at moderately elevated {ital P}(O{sub 2}). However, in contrast with Ca substitution, {Tc} decreases continuously and rapidly with increasing La content. This can be only partly explained by a decrease of the hole concentration.
- OSTI ID:
- 6521954
- Journal Information:
- Applied Physics Letters; (USA), Journal Name: Applied Physics Letters; (USA) Vol. 57:7; ISSN APPLA; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
Similar Records
Calcium-substituted Y-Ba-Cu-O superconductors with enhanced T sub c synthesized at elevated oxygen pressures
The effect of Ca doping on the structures of YBa[sub 2]Cu[sub 4]O[sub 8] and Y[sub 2]Ba[sub 4]Cu[sub 7]O[sub 14+x] single crystals
Enhanced flux pinning by combined atomic substitution and phase decomposition in cuprate superconductors
Journal Article
·
Wed Feb 28 23:00:00 EST 1990
· Physical Review, B: Condensed Matter; (USA)
·
OSTI ID:6977307
The effect of Ca doping on the structures of YBa[sub 2]Cu[sub 4]O[sub 8] and Y[sub 2]Ba[sub 4]Cu[sub 7]O[sub 14+x] single crystals
Journal Article
·
Fri Jul 01 00:00:00 EDT 1994
· Journal of Solid State Chemistry; (United States)
·
OSTI ID:6836972
Enhanced flux pinning by combined atomic substitution and phase decomposition in cuprate superconductors
Journal Article
·
Mon Sep 02 00:00:00 EDT 1991
· Applied Physics Letters; (United States)
·
OSTI ID:5470753
Related Subjects
36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CARRIER DENSITY
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
LAWRENCE BERKELEY LABORATORY
NATIONAL ORGANIZATIONS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SUPERCONDUCTIVITY
SYNTHESIS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
US AEC
US DOE
US ERDA
US ORGANIZATIONS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CARRIER DENSITY
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
LAWRENCE BERKELEY LABORATORY
NATIONAL ORGANIZATIONS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SUPERCONDUCTIVITY
SYNTHESIS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
US AEC
US DOE
US ERDA
US ORGANIZATIONS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES