Calorimetric study of the magnetization of Ce impurities in superconducting Th-Y and Th-Sc alloys

Journal Article · Wed Mar 01 04:00:00 EST 1978 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00116208· OSTI ID:6850518

Sereni, J G; Huber, J G; Luengo, C A; Maple, M B

Specific heat measurements are reported in detail for the Ce impurity in the superconducting matrix systems Th/sub 6/5Sc/sub 3/5Ce, Th/sub 8/0Y/sub 2/0Ce, and Th/sub 6/5Y/sub 3/5Ce. The variation of the specific heat jump ..delta..C at the superconducting transition temperature T/sub c/ is indicative of the magnetic nature of an impurity. For Th/sub 6/5Y/sub 3/5Ce a departure is found from the BCS law of corresponding states predicted for a nonmagnetic impurity. This departure is correlated with that observed for (La,Th)Ce systems and related to ..delta..T/sub c//n (initial slope of T/sub c/ vs. n) and Ce effective size (implied by lattice parameter data).

• Research Organization: Centro Atomico Bariloche (CNESA), Instituto de Fisica, Balseiro (UNC), Rio Negro, Argentina
• OSTI ID: 6850518
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 30:5; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ACTINIDE ALLOYS
ALLOYS
CERIUM
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
IMPURITIES
MAGNETIZATION
METALS
PHYSICAL PROPERTIES
RARE EARTHS
SCANDIUM ALLOYS
SPECIFIC HEAT
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
THORIUM ALLOYS
TRANSITION TEMPERATURE
YTTRIUM ALLOYS