Published October 1987 | Version v1
Journal article Metadata-only

Thermal and magnetic properties of some YBa2Cu3Osub(7-delta) samples

Creators

  • 1. CEA Centre d'Etudes Nucleaires de Grenoble, 38 (France). Dept. de Recherche Fondamentale
  • 2. Centre National de la Recherche Scientifique, 38 - Grenoble (France). Lab. Louis Neel
  • 3. CEA Centre d'Etudes Nucleaires de Grenoble, 38 (France). Lab. d'Electronique et de Technologie de l'Informatique

Description

Thermal and magnetic measurements have been performed on several YBa2Cu3Osub(7-δ) compounds, some ones showing a large content of high Tsub(c) (93 K) superconducting phase. A jump in the specific heat ΔCp, is well evidenced at the transition allowing a determination of the ratio ΔCp/Tsub(c) approx. 23 +- 5.mJ/(mole Cu)K2. In addition, an estimation of the γ value (approx. 11 mJ/(mole Cu).K2) has been drawn from the determination of the electronic entropy at Tsub(c). The samples have been characterized by susceptibility, magnetization and resistivity experiments. The critical field slopes at Tsub(c) were found. The results are discussed in the framework of the Ginzburg-Landau theory. (author)

Additional details

Publishing Information

Journal Title
Solid State Commun.
Journal Volume
64
Journal Issue
2
Series
Solid State Commun.
Journal Page Range
247-252
ISSN
0038-1098
CODEN
SSCOA

INIS

Country of Publication
United Kingdom
Country of Input or Organization
United Kingdom
INIS RN
19008078
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
BARIUM OXIDES; CHEMICAL COMPOSITION; COPPER OXIDES; CRITICAL FIELD; ENTROPY; GINZBURG-LANDAU THEORY; LOW TEMPERATURE; MAGNETIC SUSCEPTIBILITY; MAGNETIZATION; QUANTITY RATIO; SPECIFIC HEAT; SUPERCONDUCTIVITY; SUPERCONDUCTORS; TRANSITION TEMPERATURE; YTTRIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; MAGNETIC FIELDS; MAGNETIC MOMENTS; MAGNETIC PROPERTIES; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS