Tunneling spectroscopy on the superconducting Chevrel-phase compounds Cu1.8Mo6S8and PbMo6S8

✍ Scribed by U. Poppe; H. Wühl

• Publisher: Springer US
• Year: 1981
• Tongue: English
• Weight: 868 KB
• Volume: 43
• Category: Article
• ISSN: 0022-2291
• DOI: 10.1007/bf00116162

✦ Synopsis

The Chevrel-phase compounds PbMo6S8 and Cul.8Mo6S8 have been investigated by tunneling spectroscopy. These superconductors show a very strong electron-phonon interaction expressed by 4 <--2Ao/kTc<--5. Structures in the tunneling density of states have been observed at most energies where the phonon spectra show maxima. The coupling of high-energy modes of the M06S8 units and of modes associated with displacements of the Pb (Cu) atoms are discussed.