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R. G. Herb Condensed Matter Seminar
Interactions and superconductivivity in the polaronic Fermi liquid SrTiO<sub>3</sub>
Date: Thursday, April 21st
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
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