Published January 1998 | Version v1
Journal article Metadata-only

Effect of Zn doping and oxygen stoichiometry on the thermal conductivity of YBa2Cu3O7-δ

Creators

  • 1. SUPRAS, Institute of Physics B5, University of Liege, B-4000 Liege (Belgium)
  • 2. SUPRAS, Institute of Chemistry B6, University of Liege, B-4000 Liege (Belgium)

Description

The temperature dependence of the electronic contribution ke to the thermal conductivity of a two-dimensional superconductor with Van Hove singularities (VHSs) in the density of states is calculated. The influence of the position of these VHSs from the Fermi level is investigated. Various experimental results on the thermal conductivity of YBa2(Cu1-xZnx)3O7-δ compounds with 0≤0.017 and 0≤δ≤0.3 are analysed using the above model. A simple relation between x and δ can be extracted from this analysis. This relation is shown to be correlated with the variation of the Cu(2) valence with oxygen content and Zn doping. (author)

Availability note (English)

Available online at the Web site for the journal Superconductor Science and Technology (ISSN 1361-6668) http://www.iop.org/

Additional details

Identifiers

URL
http://www.iop.org/;

Publishing Information

Journal Title
Superconductor Science and Technology
Journal Volume
11
Journal Issue
1
Journal Page Range
p. 44-48
ISSN
0953-2048

Conference

Title
research and technology
Acronym
Conference on superconducting materials aspects
Dates
26-28 Jun 1997
Place
Liege (Belgium)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
32004466
Subject category
S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BARIUM OXIDES; COPPER OXIDES; CUPRATES; ENERGY-LEVEL DENSITY; HIGH-TC SUPERCONDUCTORS; TEMPERATURE DEPENDENCE; THERMAL CONDUCTIVITY; VAN HOVE THEORY; YTTRIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SUPERCONDUCTORS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TYPE-II SUPERCONDUCTORS; YTTRIUM COMPOUNDS