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Studying in-situ on the superconducting transition and internal friction of a high T/sub c/ superconductor YBa/sub 2/Cu/sub 3/O/sub 7-. delta. /

Journal Article · · Modern Physics Letters B; (USA)
OSTI ID:5638831
; ; ;  [1]
  1. Institute of Solid State Physics, Academia Sinica, Hefei (CN)
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The resistance, internal friction and modulus of high T/sub c/ superconductor YBa/sub 2/Cu/sub 3/O/sub 7-{delta}/ were measured in-situ in 80-300 {Kappa}. Two obvious peaks of internal frictions were observed about T/sub c/. On account of character of peaks, it is suggested that these two peaks are associated with the electronic relaxation between Cu/sup 3+/ and Cu/sup 2+/. The peak and anomalies of Young's modulus observed in the range between 160 {Kappa} and 280 {Kappa} may be related to the adjustment of deficiency of oxygen.

OSTI ID:
5638831
Journal Information:
Modern Physics Letters B; (USA), Journal Name: Modern Physics Letters B; (USA) Vol. 1:11; ISSN MPLBE; ISSN 0217-9849
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
640302 -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
656100* -- Condensed Matter Physics-- Superconductivity
74 ATOMIC AND MOLECULAR PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHARGED PARTICLES
COPPER COMPOUNDS
COPPER IONS
COPPER OXIDES
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRONIC STRUCTURE
ELEMENTS
HIGH TEMPERATURE
IONS
MECHANICAL PROPERTIES
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POINT DEFECTS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
VACANCIES
YOUNG MODULUS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES