Impurities in the heavy-Fermion superconductor UBe/sub 13/

Conference · Sat Jan 01 00:00:00 EST 1983

OSTI ID:5655665

Smith, J L; Fisk, Z; Willis, J O; Batlogg, B; Ott, H R

Small amounts of Sc, Lu, Gd, Np, Ce, Th, La, and Ba have been substituted for uranium in UBe/sub 13/ to observe their effects. The thorium, which was the most complete study, resulted in an extremely unusual nonmonotonic depression of the transition temperature for a nonmagnetic impurity. This comes from an interplay that exists between the lowest temperature resistivity peak and the transition temperature, as the peak is depressed. These results suggest tat heavy Fermion behavior is only a necessary condition for heavy Fermion superconductivity. All of the impurities tested resulted in a transition temperature depression.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Bell Labs., Murray Hill, NJ (USA); Eidgenoessische Technische Hochschule (ETH), Zurich (Switzerland)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5655665
• Report Number(s): LA-UR-83-3064; CONF-831187-7; ON: DE84001731
• Resource Relation: Conference: MMM conference, Pittsburgh, PA, USA, 8 Nov 1983; Other Information: Portions are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BERYLLIUM ALLOYS
SUPERCONDUCTIVITY
THORIUM ADDITIONS
URANIUM BASE ALLOYS
INTERMETALLIC COMPOUNDS
TRANSITION TEMPERATURE
ACTINIDE ALLOYS
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ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
PHYSICAL PROPERTIES
THERMODYNAMIC PROPERTIES
THORIUM ALLOYS
URANIUM ALLOYS
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