Evolution of electron Fermi surface with doping in cobaltates

@article{Ma2016EvolutionOE,
  title={Evolution of electron Fermi surface with doping in cobaltates},
  author={Xixia Ma and Yu Lan and Ling Qin and Lulin Kuang and Shiping Feng},
  journal={Journal of Physics: Condensed Matter},
  year={2016},
  volume={28}
}
The notion of the electron Fermi surface is one of the characteristic concepts in the field of condensed matter physics, and it plays a crucial role in the understanding of the physical properties of doped Mott insulators. Based on the t-J model, we study the nature of the electron Fermi surface in the cobaltates, and qualitatively reproduce the essential feature of the evolution of the electron Fermi surface with doping. It is shown that the underlying hexagonal electron Fermi surface obeys… 
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