R. G. Herb Condensed Matter Seminars |
Events on Thursday, April 21st, 2011
- Interactions and superconductivivity in the polaronic Fermi liquid SrTiO<sub>3</sub>
- Time: 10:00 am
- Place: 5310 Chamberlin
- Speaker: Dirk van der Marel, University of Geneva
- Abstract: SrTiO3 is a semiconductor which, when doped with a low density of electrons, becomes superconducting with a dome-shaped doping dependence of the superconducting transition temperature. I will present optical, transport and specific heat data, and discuss a unified approach to the transport properties and superconductivity, showing that superconductivity emerges out of a liquid of interacting polarons. This interaction is rather weak, disfavouring the picture of uncondensed bipolarons above Tc.
- Host: Maxim Vavilov & Andrey Chubukov