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

✍ Scribed by J. G. Sereni; J. G. Huber; C. A. Luengo; M. B. Maple

• Publisher: Springer US
• Year: 1978
• Tongue: English
• Weight: 287 KB
• Volume: 30
• Category: Article
• ISSN: 0022-2291
• DOI: 10.1007/bf00116208

✦ Synopsis

Specific heat measurements are reported in detail for the Ce impurity in the superconducting matrix systems Th65Sc35Ce, Th80Y20fe, and Th65Y3sCe. The variation of the specific heat jumpAC at the superconducting transition temperature Tc is indicative of the magnetic nature of an impurity. For Th6sY3sCe 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 ATc/n (initial slope of T~ vs. n) and Ce effective size (implied by lattice parameter data).