title: Fermi-surface shrinking and interband coupling in iron-based pnictides.
abstract: Recent measurements of the Fermi surface with de Haas-van Alphen oscillations in LaFePO showed a shrinking of the Fermi pockets with respect to first-principle calculations, suggesting an energy shift of the hole and electrons bands with respect to local-density approximations. We show that this shift is a natural consequence of the strong particle-hole asymmetry of electronic bands in pnictides, and that it provides an indirect experimental evidence of a dominant interband scattering in these systems.
authors: Dipartimento di Fisica, Università La Sapienza, 00185 Rome, Italy.
authors: L
authors: L
authors: Ortenzi
authors: E
authors: E
authors: Cappelluti
authors: L
authors: L
authors: Benfatto
authors: L
authors: L
authors: Pietronero