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Dresden 2011 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 32: SC: Fe-based Superconductors - Theory

TT 32.6: Talk

Wednesday, March 16, 2011, 12:00–12:15, HSZ 304

Cleavage behavior and surface states in Ferropnictides — •Klaus Koepernik1, Alexander Lankau1, Helmut Eschrig1, Jeroen van den Brink1, Sergey Borisenko1, Erik van Heumen2, and Mark S. Golden21IFW Dresden, Germany — 2Zeeman Institute, University of Amsterdam, Netherlands

We present a density functional study of the surface electronic structure and the cleavage behavior of LiFeAs and Co-doped BaFe2As2. The results are discussed together with angle resolved photo emission (ARPES) and low energy electron diffraction (LEED) data. The two systems behave rather differently and we conclude that LiFeAs will be the ideal system for surface sensitive probes among the iron pnictide family.

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