Published September 1, 1987 | Version v1
Journal article Metadata-only

Correlation of T/sub c/ with hole concentration in La/sub 2-//sub x/Sr/sub x/CuO/sub 4-//sub δ/ superconductors

Creators

  • 1. IBM Thomas J. Watson Research Center, Yorktown Heights, New York 10598

Description

The electron deficiency (hole concentration) in the La/sub 2-//sub x/Sr/sub x/CuO/sub 4-//sub δ/ system is determined by a chemical method. Our results show a direct correlation between T/sub c/ and hole concentration. The hole concentration equals the Sr concentration to about x = 0.15. For x>0.15, the hole concentration decreases and oxygen vacancies are formed. These results strongly support an all-electronic mechanism for superconductivity in this system

Additional details

Publishing Information

Journal Title
Phys. Rev., B: Condens. Matter
Journal Volume
36
Journal Issue
7
Series
Phys. Rev., B: Condens. Matter.
Journal Page Range
4047-4050
ISSN
0163-1829
CODEN
PRBMD

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
19008059
Subject category
S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
CHEMICAL REACTIONS; COPPER OXIDES; CORRELATIONS; CRYSTAL-PHASE TRANSFORMATIONS; ELECTRON CORRELATION; HOLES; LANTHANUM OXIDES; LATTICE PARAMETERS; ORTHORHOMBIC LATTICES; QUANTITY RATIO; STRONTIUM OXIDES; SUPERCONDUCTIVITY; SUPERCONDUCTORS; TETRAGONAL LATTICES; TRANSITION TEMPERATURE
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; LANTHANUM COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; STRONTIUM COMPOUNDS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS