Pressure dependence of the superconducting transition temperature of (Th/sub 1-x/Y/sub x/)Rh/sub 4/B/sub 4/
The pressure dependence of the superconducting transition temperatures, T/sub c/'s, of fourteen samples in the pseudoternary system (Th/sub 1-x/Y/sub x/)Rh/sub 4/B/sub 4/ are reported for hydrostatic pressures up to 21 kbar. The Y rich samples show an enhancement of T/sub c/ with applied pressure, whereas for the Th rich compounds T/sub c/ is depressed by pressure. A broad plateau in dT/sub c//dp as a function of x is observed for nearly equiatomic (0.4 less than or equal to x less than or equal to 0.80) compositions. The non-linear behavior of T/sub c/ as a function of pressure for the Y rich samples (x > 0.80) is discussed with reference to prior measurements on YRh/sub 4/B/sub 4/. Observation of this non-linearity may be related to the purity of the Y source material or the presence of a pressure-induced phase transformation.
- Research Organization:
- Ames Lab., IA (USA)
- DOE Contract Number:
- W-7405-ENG-82
- OSTI ID:
- 5203446
- Report Number(s):
- IS-M-294; CONF-800954-1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ACTINIDE ALLOYS
ALLOY SYSTEMS
ALLOYS
BORON ALLOYS
CRYSTAL-PHASE TRANSFORMATIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
INTERMETALLIC COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PLATINUM METAL ALLOYS
PRESSURE DEPENDENCE
RHODIUM ALLOYS
SUPERCONDUCTIVITY
TERNARY ALLOY SYSTEMS
THERMODYNAMIC PROPERTIES
THORIUM ALLOYS
TRANSITION TEMPERATURE
VERY HIGH PRESSURE
YTTRIUM ALLOYS