Published April 2009 | Version v1
Journal article Metadata-only

Superconducting phase formation in random neck syntheses: a study of the Y-Ba-Cu-O system by magneto-optics and magnetometry

Creators

  • 1. Department of Chemistry and Biochemistry, University of Berne, Freiestrasse 3, CH-3012-Berne (Switzerland)
  • 2. Max-Planck-Institute for Metals Research, Heisenbergstrasse 3, D-70569 Stuttgart (Germany)

Description

Magneto-optical imaging and magnetization measurements were applied to investigate the local formation of a superconducting phase effected by a random neck synthesis in the Y-Ba-Cu-O system. Polished pellets of strongly inhomogeneous ceramic samples show clearly the appearance of superconducting material in the intergrain zones of binary primary particles reacted under different conditions. Susceptibility measurements allowed evaluation of the superconducting critical temperature, which turned out to be close to that of optimally doped YBa2Cu3O7-x.

Availability note (English)

Available from http://dx.doi.org/10.1088/0953-2048/22/4/045013

Additional details

Identifiers

DOI
10.1088/0953-2048/22/4/045013;
PII
S0953-2048(09)82878-9;

Publishing Information

Journal Title
Superconductor Science and Technology
Journal Volume
22
Journal Issue
4
Journal Page Range
[5 p.]
ISSN
0953-2048
CODEN
SUSTEF

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
41003761
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
BARIUM COMPOUNDS; CERAMICS; COPPER OXIDES; CRITICAL TEMPERATURE; CUPRATES; DOPED MATERIALS; EVALUATION; MAGNETIZATION; OPTICS; RANDOMNESS; SUPERCONDUCTORS; SYNTHESIS; YTTRIUM COMPOUNDS
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; MATERIALS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION TEMPERATURE