Specific heat of the high T/sub c/ superconductor Bi-Sr-Ca-Cu-O

Journal Article · Fri Jan 01 04:00:00 EST 1988 · Modern Physics Letters B; (USA)

DOI:https://doi.org/10.1142/S0217984988000643· OSTI ID:5658181

Yuan, S L; Li, J W; Wang, W; Ran, Q Z; Zheng, G G; Guan, W Y; Zheng, J Q ^[1]

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1. Academia Sinica, Beijing, BJ (China). Inst. of Physics

The Bi-Sr-Ca-Cu-O superconductor with the nominal composition (1113) were prepared. An orthorhombic unit cell (a=0.544nm, b=0.543nm, c=3.07nm) was determined by X-ray diffraction. The resistance transition curve shows that the sample has an onset around 110{Kappa} and the zero resistance temperature at 85{Kappa}. The mutual inductance measurement also shows a two-step transition which correspond to two superconducting phases as well as that in the resistive transition. The specific heat measurement was performed in the range of 56{Kappa} to 130{Kappa} by continuous scanning method. A simple extrapolation of the curve was made both from below and above T/sub c/ to yield {Delta}C=45mj/g.{Kappa} and {Delta}C/T/sub c/=0.49mj/g.{Kappa}/sup 2/. From these values, the Sommerfeld constant {gamma} and the Debye temperature {theta}/sub D/ were estimated.

• OSTI ID: 5658181
• Journal Information: Modern Physics Letters B; (USA), Journal Name: Modern Physics Letters B; (USA) Vol. 2:7; ISSN MPLBE; ISSN 0217-9849
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CALCULATION METHODS
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DEBYE TEMPERATURE
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FABRICATION
HIGH TEMPERATURE
ORTHORHOMBIC LATTICES
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHYSICAL PROPERTIES
SCATTERING
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTIVITY
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION