Origin of in-plane anisotropic resistivity in the antiferromagnetic   phase of Fe$_{1+x}$Te
  Motivated by a recent experimental report on in-plane anisotropic resistivity in the double-striped antiferromagnetic phase of FeTe, we theoretically calculate in-plane resistivity by applying a memory function approach to the ordered phase. We find that the resistivity is larger along an antiferromagnetically ordered direction than along a ferromagnetically ordered one, consistent with experimental observation. The anisotropic results are mainly contributed from Drude weight, whose behavior is attributed to Fermi surface topology of the ordered phase. 
Eiji Kaneshita and Takami Tohyama
cond-mat.str-el