Splitting in the Fermi surface of ZrTe3 : A surface charge density wave system

@article{Hoesch2009SplittingIT,
  title={Splitting in the Fermi surface of ZrTe3 : A surface charge density wave system},
  author={Moritz Hoesch and Xiaoyu Cui and Kenya Shimada and Corsin Battaglia and Shin-ichi Fujimori and Helmuth Berger},
  journal={Physical Review B},
  year={2009},
  volume={80},
  pages={075423}
}
The electronic band structure and Fermi surface of ZrTe3 was determined by angle-resolved photoemission spectroscopy. Several bands and a large part of the Fermi surface are found to be split by 100-200 meV into two parallel dispersions. Calculations of the bulk band structure cannot reproduce this splitting even if spin-orbit interaction is taken into account. A bilayer model representing the top layers of a surface-relaxed structure without reconstruction introduces the observed splitting and… 

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