Some observations on heavy fermion superconductivity in UBe/sub 13/

Journal Article · Wed Aug 01 04:00:00 EDT 1984 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00681450· OSTI ID:6551339

Stewart, G R; Giorgi, A L

Recently it has been discovered that very slight substitution of Cu for Be in UBe/sub 13/ depresses superconductivity below 0.050 K. We have measured the low-temperature specific heat of UBe/sub 12.94/ Cu/sub 0.06/ (T/sub c/<0.050 K) and found that the heavy fermion, condensed phase present in UBe/sub 13/ appears unaltered in the copper-substituted material. Therefore, the presence of high-mass electrons is not directly correlated superconductivity in UBe/sub 13/.

• Research Organization: Los Alamos National Laboratory, Los Alamos, New Mexico
• OSTI ID: 6551339
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 56:3; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals &amp; Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
&amp; Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ACTINIDE ALLOYS
ALLOYS
BERYLLIUM ALLOYS
COPPER ADDITIONS
COPPER ALLOYS
DATA
EFFECTIVE MASS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRONS
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
FERMIONS
INFORMATION
LEPTONS
MASS
NUMERICAL DATA
PHYSICAL PROPERTIES
SPECIFIC HEAT
SUPERCONDUCTIVITY
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
ULTRALOW TEMPERATURE
URANIUM ALLOYS