Fermi surface shrinking and interband coupling in iron-based pnictides

L. Ortenzi; E. Cappelluti; L. Benfatto; L. Pietronero

Fermi surface shrinking and interband coupling in iron-based pnictides

Superconductivity 2009-07-24 v2

Authors: L. Ortenzi , E. Cappelluti , L. Benfatto , L. Pietronero

Abstract

Recent measurements of Fermi surface with de Haas-van Alphen oscillations in LaFePO showed a shrinking of the Fermi pockets with respect to first-principle LDA calculations, suggesting an energy shift of the hole and electrons bands with respect to LDA. We show that these shifts are a natural consequence of the strong particle-hole asymmetry of electronic bands in pnictides, and that they provide an indirect experimental evidence of a dominant interband scattering in these systems.

Keywords

fermi surface fermi liquid theory electronic structure

Cite

@article{arxiv.0903.0315,
  title  = {Fermi surface shrinking and interband coupling in iron-based pnictides},
  author = {L. Ortenzi and E. Cappelluti and L. Benfatto and L. Pietronero},
  journal= {arXiv preprint arXiv:0903.0315},
  year   = {2009}
}

Comments

4 latex pages, 4 eps figures included, last version as in the accepted form

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