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Colloquia

ics  Special Colloquium


Wednesday, February 25, 2015
3:30 PM
Physics Building, Room 204
Note special date.
Stephan Rachel [Host: Joe Poon]
Dresden University of Technology
"From correlated topological insulators to iridates and spin liquids"
ABSTRACT:

The non-interacting topological insulators (TIs) have attracted great interest in the last decade. While this class of materials is today well-understood, the effect of electron-eletron interactions in such systems remains in general elusive. In this talk, I will address two different aspects of interactions in 2D topological band structures: (i) in some cases, strongly interacting TI models can be used to describe the exotic magnetic properties of certain transition metal oxides. (ii) in other cases, strong interactions can drive a TI into spin-liquid phases.

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