Effect of plastic deformation on low-temperature specific heat and superconductivity of rhenium
The low temperature (4.2--50 /sup 0/K) specific heat of plastically deformed rhenium single crystal is studied, and a positive shift in the critical temperature for the superconductive transition (deltaT/sub c//T/sup 0//sub c/approx.60%) is observed. Plastic deformation produces an increase in specific heat which may be characterized by a reduction in the characteristic Debye temperature reaching 6% in greatly deformed specimens. The change in T/sub c/ with plastic deformation may be explained by renormalization of the electron--phonon interaction parameter lambda with the aid of the well known McMillan--Hopfield relationship lambda=const/M (v, mean square phonon frequency; M, atomic mass).
- Research Organization:
- Institute of Solid State Physics, Academy of Sciences of the USSR
- OSTI ID:
- 7097306
- Journal Information:
- Sov. J. Low Temp. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Low Temp. Phys. (Engl. Transl.); (United States) Vol. 3:10; ISSN SJLPD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360103 -- Metals & Alloys-- Mechanical Properties
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DEBYE TEMPERATURE
DEFORMATION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
MECHANICAL PROPERTIES
METALS
PHYSICAL PROPERTIES
PLASTICITY
REFRACTORY METALS
RHENIUM
SPECIFIC HEAT
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENTS
TRANSITION TEMPERATURE
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE