Are Th-doped and two-band superconductors?

✍ Scribed by Ivan A. Sergienko

• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 179 KB
• Volume: 359-361
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/j.physb.2005.01.147

✦ Synopsis

The superconducting sesquicarbides R 2 C 3 have noncentrosymmetric point group symmetry T d : Spin-orbit coupling lifts the spin degeneracy of electronic bands in the most of the Brillouin zone. Nevertheless, due to high symmetry, there are a few directions along which the Fermi surfaces must touch. This leads to two-band effects in the superconducting state.