Relationship between Tc and hole concentration in Bi2Sr2CaCu2O8+δ
- 1. Tech. Development Center, Toyohashi Univ. of Tech. (Japan)
- 2. Dept. of Electrical and Electronic Engineering, Toyohashi Univ. of Tech. (Japan)
Description
Structure and electrical property are studied in the quenched Bi2Sr2Ca1-xNdxCu2O8+δ system. The quenched samples with 0 ≤ x ≤ 1 have a single phase of the Bi2Sr2CaCu2O8+δ structure, as do the furnace-cooled samples. The oxygen concentration decreases slightly by about 0.05 in the chemical formula upon quenching from 800deg C into liquid nitrogen. The Tc remains a constant (≅ 90 K) for x ≤ 0.15, and decreased linearly with x in the range of 0.15 ≤ x ≤ 0.45, and superconductivity disappears for a x ≥ 0.45. The result for the quenched system, if x is shifted by +0.1 in it, agrees very well with that for the furnace cooled Bi2Sr2Ca1-xNdxCu2O8+δ and Bi2Sr2-xNdxCaCu2O8+δ systems. The relationship between the Tc and the hole concentration in [Cu-O] is confirmed to be universal in both the quenched and the furnace-cooled Bi2Sr2CaCu2O8+δ systems. (orig.)
Additional details
Publishing Information
- Journal Title
- Physica. B, Condensed Matter
- Journal Volume
- 169
- Journal Issue
- pt.3
- Series
- Phys., B Condens. Matter.
- Journal Page Range
- 685-686
- ISSN
- 0921-4526
- CODEN
- PHYBE
Conference
- Title
- 19. international conference on low temperature physics (LT-19).
- Dates
- 16-22 Aug 1990.
- Place
- Brighton (UK).
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 22079190
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- BISMUTH OXIDES; CALCIUM OXIDES; CARRIER DENSITY; CHEMICAL COMPOSITION; COPPER OXIDES; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELECTRON MICROPROBE ANALYSIS; HEAT TREATMENTS; HIGH-TC SUPERCONDUCTORS; LATTICE PARAMETERS; LOW TEMPERATURE; NEODYMIUM ADDITIONS; NITROGEN; OXYGEN; QUANTITY RATIO; QUENCHING; STRONTIUM OXIDES; SUPERCONDUCTIVITY; TRANSITION TEMPERATURE; VERY HIGH TEMPERATURE; VERY LOW TEMPERATURE; X-RAY DIFFRACTION
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CHALCOGENIDES; CHEMICAL ANALYSIS; COHERENT SCATTERING; COPPER COMPOUNDS; DIFFRACTION; ELEMENTS; MICROANALYSIS; NONDESTRUCTIVE ANALYSIS; NONMETALS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH ADDITIONS; SCATTERING; STRONTIUM COMPOUNDS; SUPERCONDUCTORS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS