Comparison of the pressure dependencies of T/sub c/ in the 90-K superconductors RBa/sub 2/Cu/sub 3/O/sub x/ (R = Gd, Er, and Yb) and YBa/sub 2/Cu/sub 3/O/sub x/
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
We have determined the effect of pressure P on the resistance and superconducting transition temperature T/sub c/ of RBa/sub 2/Cu/sub 3/O/sub x/ (R = Gd, Er, and Yb) and compare our results to those obtained on high quality YBa/sub 2/Cu/sub 3/O/sub x/. The transition temperature, which is 90 K or greater at ambient pressure for all four compounds, is enhanced by pressure in each at rates between 0.09 and 0.19 K/kbar. Interestingly, the presence of a localized moment in the rare-earth compounds appears to have no influence on the pressure response. From the positive dT/sub c//dP we infer a positive change in the thermal expansion upon entering the superconducting state.
- Research Organization:
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545
- OSTI ID:
- 5828588
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 36:4; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
Similar Records
Pressure dependence of the superconducting transition temperature in the 94-K superconductor YBa/sub 2/Cu/sub 3/O/sub 7/
The properties of RBa sub 2 (Cu sub 1 minus x Ag sub x ) sub 3 O sub 7 superconductors
Superconducting and magnetic properties of RBa/sub 2/Cu/sub 3/O/sub 7-//sub x/ compounds
Journal Article
·
Mon Jun 01 00:00:00 EDT 1987
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:6422985
The properties of RBa sub 2 (Cu sub 1 minus x Ag sub x ) sub 3 O sub 7 superconductors
Journal Article
·
Mon Oct 01 00:00:00 EDT 1990
· International Journal of Modern Physics B; (United States)
·
OSTI ID:6113443
Superconducting and magnetic properties of RBa/sub 2/Cu/sub 3/O/sub 7-//sub x/ compounds
Journal Article
·
Fri Apr 15 00:00:00 EDT 1988
· J. Appl. Phys.; (United States)
·
OSTI ID:5389791
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
DIAMAGNETISM
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ERBIUM COMPOUNDS
ERBIUM OXIDES
EXPANSION
FABRICATION
GADOLINIUM COMPOUNDS
GADOLINIUM OXIDES
LOW TEMPERATURE
MAGNETIC MOMENTS
MAGNETISM
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POWDERS
PRESSURE DEPENDENCE
RARE EARTH COMPOUNDS
SINTERING
TEMPERATURE DEPENDENCE
THERMAL EXPANSION
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
VERY HIGH PRESSURE
YTTERBIUM COMPOUNDS
YTTERBIUM OXIDES
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
DIAMAGNETISM
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ERBIUM COMPOUNDS
ERBIUM OXIDES
EXPANSION
FABRICATION
GADOLINIUM COMPOUNDS
GADOLINIUM OXIDES
LOW TEMPERATURE
MAGNETIC MOMENTS
MAGNETISM
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POWDERS
PRESSURE DEPENDENCE
RARE EARTH COMPOUNDS
SINTERING
TEMPERATURE DEPENDENCE
THERMAL EXPANSION
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
VERY HIGH PRESSURE
YTTERBIUM COMPOUNDS
YTTERBIUM OXIDES
YTTRIUM COMPOUNDS
YTTRIUM OXIDES