Broadband femtosecond spectroscopy studies on tantalum disulfide
Event details
| Date | 12.11.2012 |
| Hour | 12:30 |
| Speaker | Andrea Mann, Laboratory for Ultrafast Microscopy and Electron Scattering, ICMP - EPFL |
| Location | |
| Category | Conferences - Seminars |
The transition metal dichalcogenide tantalum disulfide (TaS2), which shows a charge density wave (CDW), has been the subject of numerous studies during the past years due to its intriguing combination of electron-electron and electron-phonon correlations. Timeresolved ARPES and electron diffraction measurements have shown that below 200K TaS2 enters an insulating phase with features of both the Mott and the Peierls mechanism. Furthermore, superconducting phases can appear in TaS2 and related compounds under certain conditions, opening the question of the mechanism of superconductivity and its relation to (or competition with) the CDW mechanism.
Practical information
- Informed public
- Free
Organizer
- ICMP (Barbara Mansart)
Contact
- Barbara Mansart