The absence of surface states for LiFeAs

Alexander Lankau; Bernd B\"uchner; Helmut Eschrig; Jeroen van den Brink; Klaus Koepernik; Sergey Borisenko; Volodymyr Zabolotnyy

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The absence of surface states for LiFeAs

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arxiv 1008.5234 v1 pith:UODW7BPC submitted 2010-08-31 cond-mat.supr-con

The absence of surface states for LiFeAs

Alexander Lankau , Klaus Koepernik , Sergey Borisenko , Volodymyr Zabolotnyy , Bernd B\"uchner , Jeroen van den Brink , Helmut Eschrig This is my paper

classification cond-mat.supr-con

keywords surfaceelectroniclifeasarpescalculationscleavingstatesstructure

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We investigate the cleaving behavior of LiFeAs and determine its surface electronic structure by detailed density functional calculations. We show that due to the neutral surface of LiFeAs after cleaving, barely any influence of the surface on the electronic states is present. Therefore the data of surface sensitive probes such as angle resolved photoemission spectroscopy (ARPES) represent to a high degree the bulk electronic structure. This we highlighted by a direct comparison of the calculations to ARPES spectra.

The absence of surface states for LiFeAs

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