A preliminary study of the variation of superconducting transition temperature of ternary Nb50Ti30M20(M = Mo, Pt, Pd, V and Ru) solid solutions is reported. We find the agreement between the theoretical values predicted by Meidema and the observed values is very poor. A possible cause for this dis
Specific heat measurements in superconducting and normal state Ta-Nb-V ternary solid solutions
โ Scribed by R. Y. P. Wang; R. L. Cappelletti
- Publisher
- Springer US
- Year
- 1978
- Tongue
- English
- Weight
- 425 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0022-2291
No coin nor oath required. For personal study only.
โฆ Synopsis
Specific heat measurements between 2 and 6 K on three bulk isoelectronic TaxNby Vi-x-y bcc solid solutions have been performed above and below their superconducting transition temperatures in and out of a 46-kOe field. The behavior of Tc with alloying is well predicted by Miedema' s charge-transfer method, which uses measured OD, but which has no adjustable parameters. Miedema's model also predicts y correctly. Hopfield' s method for Tc fails in these alloys, and probably over the entire V-Nb-Ta system except very near the Nb-Ta line.
๐ SIMILAR VOLUMES
In this study, 51 V, 45 Sc and 93 Nb MAS NMR combined with satellite transition spectroscopy analysis were used to characterize the complex solid mixtures: VNb 9.1-x/ Ta 9x O 25 , ScNb .1-x/ Ta x O 4 and ScNb 2.1-x/ Ta 2x VO 9 (x = 0, 0.3, 0.5, 0.7, 1.0). This led us to describe the structures of Sc