TY - JOUR
T1 - Anisotropic in-plane resistivity in the nematic phase of the iron pnictides
AU - Fernandes, Rafael M.
AU - Abrahams, Elihu
AU - Schmalian, Jörg
PY - 2011/11/14
Y1 - 2011/11/14
N2 - We show that the interference between scattering by impurities and by critical spin fluctuations gives rise to anisotropic transport in the Ising-nematic state of the iron pnictides. The effect is closely related to the non-Fermi-liquid behavior of the resistivity near an antiferromagnetic quantum critical point. Our theory not only explains the observed sign of the resistivity anisotropy Δρ in electron-doped systems but also predicts a sign change of Δρ upon sufficient hole doping. Furthermore, our model naturally addresses the changes in Δρ upon sample annealing and alkaline-earth substitution.
AB - We show that the interference between scattering by impurities and by critical spin fluctuations gives rise to anisotropic transport in the Ising-nematic state of the iron pnictides. The effect is closely related to the non-Fermi-liquid behavior of the resistivity near an antiferromagnetic quantum critical point. Our theory not only explains the observed sign of the resistivity anisotropy Δρ in electron-doped systems but also predicts a sign change of Δρ upon sufficient hole doping. Furthermore, our model naturally addresses the changes in Δρ upon sample annealing and alkaline-earth substitution.
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U2 - 10.1103/PhysRevLett.107.217002
DO - 10.1103/PhysRevLett.107.217002
M3 - Article
C2 - 22181914
AN - SCOPUS:81155132134
SN - 0031-9007
VL - 107
JO - Physical review letters
JF - Physical review letters
IS - 21
M1 - 217002
ER -