Published July 20, 1992 | Version v1
Journal article Metadata-only

High-pressure study on Mo-stabilized Sr-based 123 compounds YSr2Cu2.8Mo0.2Oy and TbSr2Cu2.7Mo0.3Oy

Creators

  • 1. Dept. of Physics and Texas Center for Superconductivity, Univ. of Houston (United States)
  • 2. Space Vacuum Epitaxy Center, Univ. of Houston (United States)

Description

The pressure effect on the superconducting transition temperature Tc of the newly stabilized YSr2Cu2.8Mo0.2Oy and Tb-Sr2Cu2.7Mo0.3Oy compounds has been examined under hydrostatic pressure. The pressure coefficient dTc/dP was found to be +0.84 K/kbar for YSr2Cu2.8Mo0.2Oy and +0.4 K/kbar for TbSr2Cu2.7Mo0.3Oy. These large positive values of dTc/dP suggest that the presence of Mo in the CuO-chain sites is crucial in the stabilization of the Sr-based 123 compounds. (orig.)

Additional details

Publishing Information

Journal Title
Physica. C, Superconductivity
Journal Volume
198
Journal Issue
1/2
Journal Page Range
p. 70-74.
ISSN
0921-4534
CODEN
PHYCE6

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
24005421
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
COPPER OXIDES; ELECTRIC CONDUCTIVITY; HIGH-TC SUPERCONDUCTORS; MOLYBDENUM OXIDES; PRESSURE DEPENDENCE; RAMAN SPECTRA; STRONTIUM OXIDES; SUPERCONDUCTIVITY; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0013-0065 K; TEMPERATURE RANGE 0065-0273 K; TERBIUM OXIDES; TRANSITION TEMPERATURE; VERY HIGH PRESSURE; X-RAY DIFFRACTION; YTTRIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; COPPER COMPOUNDS; DIFFRACTION; ELECTRICAL PROPERTIES; MOLYBDENUM COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; SCATTERING; SPECTRA; STRONTIUM COMPOUNDS; SUPERCONDUCTORS; TEMPERATURE RANGE; TERBIUM COMPOUNDS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS