Thermodynamic critical field of Y sub 1 Ba sub 2 Cu sub 3 O sub 7

Conference · Thu Jan 01 04:00:00 EST 1987

OSTI ID:6597703

Finnemore, D K; Fang, M M; Clem, J R; McCallum, R W; Ostenson, J E; Ji, Li; Klavins, P ^[1]

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1. Ames Lab., IA (USA) Iowa State Univ. of Science and Technology, Ames, IA (USA). Dept. of Physics

The thermodynamic critical field curve has been measured for Y{sub 1}Ba{sub 2}Cu{sub 3}O{sub 7} close to the superconducting transition temperature in order to determine the magnitude of the specific heat jump at the transition. The slope of the critical field curve is found to be 165 Oe/K, which corresponds to a specific heat jump of 680 mJ/moleCuK. If the BCS theory applies, this would also imply a density of electronic states of theory applies, this would also imply a density of electronic states of 3.39 states per electron volt-unit cell and the Sommerfeld term, {gamma} = 5.3 mJ/moleCuK{sup 2}. 7 refs., 4 figs.

• Research Organization: Ames Lab., IA (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 6597703
• Report Number(s): IS-M-633; CONF-870682--7; ON: DE90016711
• Country of Publication: United States
• Language: English

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
CRITICAL FIELD
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HIGH-TC SUPERCONDUCTORS
MAGNETIC FIELDS
MAGNETIZATION
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SPECIFIC HEAT
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES