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Lecture Dirk van der Marel


20 May 2011 FWN-Building 6116.0116, Nijenborgh 4, 9747 AG, Groningen
Speaker: Prof. Dr. Dirk van der Marel
Affiliation: University of Geneva, Switzerland
Title: Superconductivity in the anti-adiabatic limit in doped strontium titanate
Date: Fri May 20, 2011
Start: 14.00
Location: FWN-Building 5116.0116
Host: Maxim Mostovoy
Telephone: +31 50 363 3419


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.

Last modified:22 October 2012 2.30 p.m.