Publication Type
Journal
Journal Name
Physical Review Letters
Publication Date
Page Number
047001
Volume
109
Issue
4
Abstract
An undoped three-orbital spin-fermion model for the Fe-based superconductors is studied via
Monte Carlo techniques in two-dimensional clusters. At low temperatures, the magnetic and one-particle
spectral properties are in agreement with neutron and photoemission experiments. Our main results are the
resistance versus temperature curves that display the same features observed in BaFe2As2 detwinned
single crystals (under uniaxial stress), including a low-temperature anisotropy between the two directions
followed by a peak at the magnetic ordering temperature, that qualitatively appears related to short-range
spin order and concomitant Fermi surface orbital order.
