Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1594873 | Solid State Communications | 2008 | 4 Pages |
Abstract
This work reports on superconductivity in the Heusler compounds Pd2ZrAl and Pd2HfAl. Magnetisation and resistance measurements were carried out to verify their superconducting states. The compounds exhibit transition temperatures of 3.2 K (Zr) and 3.4 K (Hf). From their behaviour in external magnetic fields, it was determined that both compounds are type II superconductors. Similar to the half-metallic ferromagnets, the superconducting Heusler compounds follow an electron counting scheme based on theoretical considerations. As found from ab initio calculations, the superconductivity can be explained by a valence instability at the LL-point, that has been used as design criterion.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Jürgen Winterlik, Gerhard H. Fecher, Claudia Felser,