Pressure research on the superconductivities of Y-Ba-Cu and Y-Gd-Ba-Cu oxides
Journal Article
·
· Chin. Phys.; (United States)
OSTI ID:6418976
The pressure effect on the superconducting transition temperature for Y/sub 1/-Ba/sub 2/-Cu/sub 3/ and Y/sub 1/-Gd/sub 1/-Ba/sub 1/-Cu/sub 3/ oxides was investigated up to 12 kbar between 77--300 K. The resistance measurements were carried out by the use of a standard DC four-lead technique. The pressure environment was provided by a Be-Cu clamp with a fluid medium. Pressure enhanced the superconducting transition temperature T/sub c//sub //sub i/ (onset temperature) and T/sub c//sub //sub f/ (the temperature where resistance vanishes) for these two materials; the ..delta..T/sub c//sub //sub f//..delta..p is 0.71 K kbar for Y-Ba-Cu oxide and 0.27 K/kbar for Y-Gd-Ba-Cu oxide. The resistivity rho/sub c//sub //sub i/ at T/sub c//sub //sub i/ is depressed by pressure for Y-Ba-Cu oxide.
- Research Organization:
- Department of Physics, Shanghai University of Science and Technology
- OSTI ID:
- 6418976
- Journal Information:
- Chin. Phys.; (United States), Journal Name: Chin. Phys.; (United States) Vol. 9:1; ISSN CHPHD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
GADOLINIUM COMPOUNDS
GADOLINIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PRESSURE EFFECTS
RARE EARTH COMPOUNDS
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
VERY HIGH PRESSURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
GADOLINIUM COMPOUNDS
GADOLINIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PRESSURE EFFECTS
RARE EARTH COMPOUNDS
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
VERY HIGH PRESSURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES