Nuclear Spin-Lattice Relaxation in Kondo Superconductor
Journal Article
·
· J. Low Temp. Phys.; (United States)
The nuclear spin--lattice relaxation rate R/sub s/ in a Kondo superconductor has been calculated numerically in the framework of the Mueller-Hartmann-Zittartz depairing theory. The calculations have been performed in the case of the usual Korringa mechanism for certain concentrations of magnetic impurities and some typical values of T/sub kappa//T/sub c0/, where T/sub k/ is the Kondo temperature and T/sub c0/ is the superconducting transtition temperature in the absence of magnetic impurities. The temperature variation of R/sub s/ shows very interesting behavior for values of T/sub k//T/sub c0/ corresponding to the reentrance behavior of superconductivity. Results are compared with the experimental data on the La(Ce)Al/sub 2/ system obtained by MacLaughlin, Alloul, and Daugherty. Other Possible relaxation mechanisms in the La(Gd, Ce)Al/sub 2/ systems are also discussed.
- Research Organization:
- Department of Physics, Nagoya University, Chikusa-ku, Nagoya, Japan
- OSTI ID:
- 6814374
- Journal Information:
- J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 30:7; ISSN JLTPA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360104 -- Metals & Alloys-- Physical Properties
656102* -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
ALUMINIUM ALLOYS
ALUMINIUM BASE ALLOYS
CERIUM ALLOYS
CRITICAL TEMPERATURE
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
IMPURITIES
KONDO EFFECT
LANTHANUM ALLOYS
MAGNETIC PROPERTIES
MAGNETIC RESONANCE
NUCLEAR MAGNETIC RESONANCE
ORDER-DISORDER TRANSFORMATIONS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
RELAXATION
RESONANCE
SUPERCONDUCTIVITY
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
360104 -- Metals & Alloys-- Physical Properties
656102* -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
ALUMINIUM ALLOYS
ALUMINIUM BASE ALLOYS
CERIUM ALLOYS
CRITICAL TEMPERATURE
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
IMPURITIES
KONDO EFFECT
LANTHANUM ALLOYS
MAGNETIC PROPERTIES
MAGNETIC RESONANCE
NUCLEAR MAGNETIC RESONANCE
ORDER-DISORDER TRANSFORMATIONS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
RELAXATION
RESONANCE
SUPERCONDUCTIVITY
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE