Published July 1, 2004 | Version v1
Journal article Metadata-only

The influence of apical oxygen on the increase of Tc in Y Ba2Cu3O7-X

Creators

  • 1. School of Applied Science, Hebrew University of Jerusalem, Jerusalem 91904 (Israel)

Description

The direct current (DC) bulk resistance and acoustic emission of Y Ba2Cu3O7-X ceramic samples have simultaneously been measured during heating in a temperature region of 400-700 K. Near 560 K, an anomaly of ρ, accompanied by an acoustic emission, has been observed. After this anomaly ρ reached a lower value than had previously been measured. The observed ρ decrease and acoustic emission signals confirm that Y Ba2Cu3O7-X ceramic samples absorb oxygen during heating in the temperature region of 500-600 K, as shown by previous dilatometric measurements (Dul'kin 2001 J. Superconductivity 14 497). It is shown that absorbed oxygen atoms enter O4 apical oxygen sites and are able to increase the Tc in Y Ba2Cu3O7-X material

Availability note (English)

Available online at http://stacks.iop.org/0953-2048/17/954/sust4_7_022.pdf or at the Web site for the journal Superconductor Science and Technology (ISSN 1361-6668) http://www.iop.org/

Additional details

Identifiers

URL
http://stacks.iop.org/0953-2048/17/954/sust4_7_022.pdf; http://www.iop.org/;
DOI
10.1088/0953-2048/17/7/022;
PII
S0953-2048(04)74330-4;

Publishing Information

Journal Title
Superconductor Science and Technology
Journal Volume
17
Journal Issue
7
Journal Page Range
p. 954-956
ISSN
0953-2048
CODEN
SUSTEF

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
35070602
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ABSORPTION; BARIUM COMPOUNDS; COPPER OXIDES; DIRECT CURRENT; EMISSION; OXYGEN; SUPERCONDUCTIVITY; TEMPERATURE RANGE 0400-1000 K; TRANSITION TEMPERATURE; YTTRIUM COMPOUNDS
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; CURRENTS; ELECTRIC CONDUCTIVITY; ELECTRIC CURRENTS; ELECTRICAL PROPERTIES; ELEMENTS; NONMETALS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SORPTION; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS