# Emergent defect states as a source of resistivity anisotropy in the nematic phase of iron pnictides.

@article{Gastiasoro2014EmergentDS,
title={Emergent defect states as a source of resistivity anisotropy in the nematic phase of iron pnictides.},
author={Maria N. Gastiasoro and Indranil Paul and Yong-sheng Wang and P. J. Hirschfeld and Brian M. Andersen},
journal={Physical review letters},
year={2014},
volume={113 12},
pages={
127001
}
}
We consider the role of potential scatterers in the nematic phase of Fe-based superconductors above the transition temperature to the (π, 0) magnetic state but below the orthorhombic structural transition. The anisotropic spin fluctuations in this region can be frozen by disorder, to create elongated magnetic droplets whose anisotropy grows as the magnetic transition is approached. Such states act as strong anisotropic defect potentials that scatter with much higher probability perpendicular to… Expand
33 Citations

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