Pressure dependence of the superconducting transition temperature in single crystals of Tl[sub 2]Ba[sub 2]Ca[sub 2]Cu[sub 3]O[sub 10[minus][ital x]]
Journal Article
·
· Physical Review, B: Condensed Matter; (United States)
- Naval Research Laboratory, Washington, D.C. 20375 (United States)
- Office of Naval Research, Arlington, Virginia 22217 (United States)
The pressure dependence of the superconducting transition temperature, [ital T][sub [ital c]]([ital P]), has been measured in single crystals of Tl[sub 2]Ba[sub 2]Ca[sub 2]Cu[sub 3]O[sub 10[minus][ital x]]. In two overdoped samples, [ital T][sub [ital c]]([ital P]) is observed to increase from 116 K at atmospheric pressure to 131.8[plus minus]0.5 K at 7 GPa. We believe this is the highest [ital T][sub [ital c]] reported to date. The initial slope, [ital dT][sub [ital c]]/[ital dP], was measured to be 4.8[plus minus]0.3 K/GPa. For samples with [ital T][sub [ital c]]'s at atmospheric pressure approaching the reported optimum value for this compound of 125 K, the effect of pressure is reduced. These results are discussed in terms of existing theoretical models.
- OSTI ID:
- 5430080
- Journal Information:
- Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 47:9; ISSN PRBMDO; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CALCIUM COMPOUNDS
COPPER COMPOUNDS
CRYSTALS
CUPRATES
HIGH-TC SUPERCONDUCTORS
MONOCRYSTALS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
SUPERCONDUCTORS
THALLIUM COMPOUNDS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
VERY HIGH PRESSURE
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CALCIUM COMPOUNDS
COPPER COMPOUNDS
CRYSTALS
CUPRATES
HIGH-TC SUPERCONDUCTORS
MONOCRYSTALS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
SUPERCONDUCTORS
THALLIUM COMPOUNDS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
VERY HIGH PRESSURE