Normal-state resistivity of the high-T/sub c/ compound Y/sub 1/Ba/sub 2/Cu/sub 3/O/sub 7-//sub delta/

Journal Article · Sun Nov 01 04:00:00 EST 1987 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.36.7259· OSTI ID:5681254

Chaki, T K; Rubinstein, M

The resistivity of Y/sub 1/Ba/sub 2/Cu/sub 3/O/sub 7-//sub delta/ has been measured in an oxygen atmosphere from 90 to 800 K. Above 300 K, the slope of the resistivity versus temperature curve increases from its initial constant value. Around 625 K an anomaly occurs and resistivity remains essentially constant with increasing temperature and becomes hysteretic during cooling. We correlate the data above 500 K with the gain and loss of oxygen observed by thermogravimetric analysis. Such an explanation is consistent with recent density-of-states calculations.

• Research Organization: Naval Research Laboratory, Washington, DC 20375
• OSTI ID: 5681254
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 36:13; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ENERGY-LEVEL DENSITY
HIGH TEMPERATURE
LOW TEMPERATURE
MEDIUM TEMPERATURE
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES