Evidence of granular superconductivity in Pr[sub 2[minus]z]Ce[sub z]Sr[sub 2]Cu[sub 2]NbO[sub 10]
Conference
·
· International Journal of Modern Physics B
OSTI ID:6384347
- Univ. of Notre Dame, IN (United States). Physics Dept.
- Arizona State Univ., Tempe, AZ (United States). Dept. of Physics National High Magnetic Field Lab., Tallahassee, FL (United States)
- Hebrew Univ., Jerusalem (Israel). Raccah Inst. of Physics
- Univ. of Missouri, Columbia, MO (United States). Research Reactor Facility
Pr[sub 2[minus]z]Ce[sub z]Sr[sub 2]Cu[sub 2]NbO[sub 10] (Pr222Nb10), is widely believed to not superconduct, although its homologues in which Pr is replaced by Nd, Sm, Eu, or Gd do (with [Tc] [approx] 28 K). On the basis of bulk resistivity, bulk diamagnetism, electron spin resonance, and surface resistance measurements of Pr222Nb10, the authors conclude that it does exhibit granular superconductivity (as predicted) with a critical temperature in the range 25--29 K, but is not currently a bulk superconductor. Neutron diffraction studies show that the Pr222Nb10 is multi-phase, but does not contain significant amounts of any (known) superconducting phase.
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG02-90ER45427
- OSTI ID:
- 6384347
- Report Number(s):
- CONF-980291--
- Journal Information:
- International Journal of Modern Physics B, Journal Name: International Journal of Modern Physics B Vol. 12:29-31; ISSN IJPBEV; ISSN 0217-9792
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
CERIUM COMPOUNDS
CERIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
NIOBIUM COMPOUNDS
NIOBIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHYSICAL PROPERTIES
PRASEODYMIUM COMPOUNDS
PRASEODYMIUM OXIDES
RARE EARTH COMPOUNDS
REFRACTORY METAL COMPOUNDS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
CERIUM COMPOUNDS
CERIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
NIOBIUM COMPOUNDS
NIOBIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHYSICAL PROPERTIES
PRASEODYMIUM COMPOUNDS
PRASEODYMIUM OXIDES
RARE EARTH COMPOUNDS
REFRACTORY METAL COMPOUNDS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE