Published December 1988 | Version v1
Journal article Metadata-only

Pair breaking in the heavy-fermion superconductors Ce1-xMxCu2.2Si2 and U1-xMxBe13 (M: Th, La, Y and Gd)

Creators

  • 1. Florida Univ., Gainesville (USA). Dept. of Physics
  • 2. Technische Hochschule Darmstadt (Germany, F.R.). Inst. fuer Festkoerperphysik

Description

We report measurements of Tc and ΔC for Ce1-xMxCu2.2Si2 (M=La, Y, Gd) and U1-xMxBe13 (M: Th, La, Y). ''Diamagnetic'' pair breaking by nonmagnetic dopants is observed which implies an anisotropic nature of both the superconducting order parameter and the impurity-scattering mechanism. Gd impurities in CeCu2.2Si2 give rise to additional ''paramagnetic'' pair breaking. (orig)

Additional details

Additional titles

Augmented title (English)
materials: Ce-La-Cu-Si, Ce-Y-Cu-Si, Ce-Gd-Cu-Si, U-Th-Be, U-La-Be, U-Y-Be systems

Publishing Information

Journal Title
Journal of Magnetism and Magnetic Materials
Journal Volume
76/77
Series
J. Magn. Magn. Mater.
Journal Page Range
520-522
ISSN
0304-8853
CODEN
JMMMD

Conference

Title
6. international conference on crystal-field effects and heavy-fermion physics (ICCHFP-6).
Dates
18-21 Jul 1988.
Place
Frankfurt am Main (Germany, F.R.).

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
20018150
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANISOTROPY; BERYLLIUM ALLOYS; CERIUM ALLOYS; COOPER PAIRS; COPPER ALLOYS; DOPED MATERIALS; IMPURITIES; KONDO EFFECT; ORDER PARAMETERS; SILICON ALLOYS; SPECIFIC HEAT; SUPERCONDUCTIVITY; SUPERCONDUCTORS; TEMPERATURE DEPENDENCE; TRANSITION TEMPERATURE; URANIUM ALLOYS
Descriptors DEC
ACTINIDE ALLOYS; ALLOYS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; MATERIALS; PHYSICAL PROPERTIES; RARE EARTH ALLOYS; THERMODYNAMIC PROPERTIES

Optional Information

Contract/Grant/Project number
Contract DE-FG05-86ER45268