Superconductivity in the presence of strong Pauli paramagnetism: CeCu/sub 2/Si/sub 2/
Journal Article
·
· Phys. Rev. Lett.; (United States)
A comparison was made between four low-temperature properties of LaCu/sub 2/Si/sub 2/ and CeCu/sub 2/Si/sub 2/. Whereas LaCu/sub 2/Si/sub 2/ behaves like a normal metal, CeCu/sub 2/Si/sub 2/ shows (i) low-temperature anomalies typical of ''unstable 4f shell'' behavior and (ii) a transition into a superconducting state at T/sub c/ approx. = 0.5 K. Our experiments demonstrate for the first time that superconductivity can exist in a metal in which many-body interactions, probably magnetic in origin, have strongly renormalized the properties of the conduction-electron gas.
- Research Organization:
- Institut fuer Festkoerperphysik, Technische Hochschule Darmstadt, D-6100 Darmstadt, West Germany
- OSTI ID:
- 5774049
- Journal Information:
- Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 43:25; ISSN PRLTA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360603* -- Materials-- Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANNEALING
CERIUM COMPOUNDS
CERIUM SILICIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER SILICIDES
CRYSTALS
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HEAT TREATMENTS
KONDO EFFECT
LANTHANUM COMPOUNDS
LANTHANUM SILICIDES
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
MAGNETIZATION
MEISSNER-OCHSENFELD EFFECT
PARAMAGNETISM
PHYSICAL PROPERTIES
POLYCRYSTALS
RARE EARTH COMPOUNDS
SCATTERING
SILICIDES
SILICON COMPOUNDS
SPECIFIC HEAT
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
ULTRAHIGH VACUUM
ULTRALOW TEMPERATURE
X-RAY DIFFRACTION
360603* -- Materials-- Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANNEALING
CERIUM COMPOUNDS
CERIUM SILICIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER SILICIDES
CRYSTALS
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HEAT TREATMENTS
KONDO EFFECT
LANTHANUM COMPOUNDS
LANTHANUM SILICIDES
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
MAGNETIZATION
MEISSNER-OCHSENFELD EFFECT
PARAMAGNETISM
PHYSICAL PROPERTIES
POLYCRYSTALS
RARE EARTH COMPOUNDS
SCATTERING
SILICIDES
SILICON COMPOUNDS
SPECIFIC HEAT
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
ULTRAHIGH VACUUM
ULTRALOW TEMPERATURE
X-RAY DIFFRACTION