Nature of superconductivity in BaPb/sub 1-x/Bi/sub x/O/sub 3/ solid solutions with perovskite structure. Role of dielectrization of the electron spectrum
Journal Article
·
· Sov. Phys. - JETP (Engl. Transl.); (United States)
OSTI ID:5999820
The electric resistance R of a set of BaPb/sub 1-x/Bi/sub x/O/sub 3/ solutions of varying compositions is measured as a function of the temperature T. A negative temperature resistance coefficient is observed for superconducting samples with x = 0.25 and T/sub c/roughly-equal10 K; this is an indication of the dielectrization of the electron spectrum. The experimentally observed absence of a heat-capacity jump at T = T/sub c/ is explained on the basis of the theory of superconductors with a dielectric gap on a part of the Fermi surface.
- OSTI ID:
- 5999820
- Journal Information:
- Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 56:4; ISSN SPHJA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Experimental demonstration of bulk superconductivity in the perovskite system BaPb/sub 1-x/Bi/sub x/O/sub 3/
High pressure study on heterogeneous superconducting materials. [BaPb/sub 1-x/Bi/sub x/O/sub 3/]
Ultraviolet photoemission study of single-crystal BaPb/sub 1/minus//ital x//Bi/sub /ital x//O/sub 3/
Journal Article
·
Tue May 01 00:00:00 EDT 1984
· Sov. Phys. - JETP (Engl. Transl.); (United States)
·
OSTI ID:6055895
High pressure study on heterogeneous superconducting materials. [BaPb/sub 1-x/Bi/sub x/O/sub 3/]
Thesis/Dissertation
·
Sat Dec 31 23:00:00 EST 1983
·
OSTI ID:5770136
Ultraviolet photoemission study of single-crystal BaPb/sub 1/minus//ital x//Bi/sub /ital x//O/sub 3/
Journal Article
·
Tue Aug 01 00:00:00 EDT 1989
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:6050936
Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
BISMUTH COMPOUNDS
BISMUTH OXIDES
CHALCOGENIDES
DIELECTRIC PROPERTIES
DISPERSIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON SPECTRA
LEAD COMPOUNDS
LEAD OXIDES
MIXTURES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SOLID SOLUTIONS
SOLUTIONS
SPECIFIC HEAT
SPECTRA
SUPERCONDUCTIVITY
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
ULTRALOW TEMPERATURE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
BISMUTH COMPOUNDS
BISMUTH OXIDES
CHALCOGENIDES
DIELECTRIC PROPERTIES
DISPERSIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON SPECTRA
LEAD COMPOUNDS
LEAD OXIDES
MIXTURES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SOLID SOLUTIONS
SOLUTIONS
SPECIFIC HEAT
SPECTRA
SUPERCONDUCTIVITY
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
ULTRALOW TEMPERATURE