Effects of oxygen content on pressure-induced superconductivity in EuMo/sub 6/S/sub 8/

Journal Article · Mon Aug 15 04:00:00 EDT 1983 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.51.601· OSTI ID:5655360

Capone, II, D W; Guertin, R P; Foner, S; Hinks, D G; Li, H

Pressure-induced superconductivity in EuMo/sub 6/S/sub 8/ is sensitive to the systematic addition of oxygen. As oxygen content increases, the critical pressure above which the sample is superconducting (Papprox. =11 kbar) decreases, the onset is less abrupt, the maximum T/sub c/ (11.8 K) decreases, and dT/sub c//dP at high pressures (-0.29 K/kbar) is less negative. The c/a ratio and the unit cell volume vary linearly with the extrapolated zero pressure T/sub c/. The results are discussed in terms of an oxygen-induced defect at the Eu site.

• Research Organization: Tufts University, Medford, Massachusetts 02155
• OSTI ID: 5655360
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 51:7; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CHALCOGENIDES
CRITICAL PRESSURE
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EUROPIUM COMPOUNDS
EUROPIUM SULFIDES
EXPERIMENTAL DATA
INFORMATION
INHIBITION
MOLYBDENUM COMPOUNDS
MOLYBDENUM SULFIDES
NUMERICAL DATA
OXYGEN ADDITIONS
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
RARE EARTH COMPOUNDS
SULFIDES
SULFUR COMPOUNDS
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
ULTRALOW TEMPERATURE
VERY HIGH PRESSURE