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
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References

SHOWING 1-10 OF 32 REFERENCES
"J."
however (for it was the literal soul of the life of the Redeemer, John xv. io), is the peculiar token of fellowship with the Redeemer. That love to God (what is meant here is not God’s love to men)Expand
I
AIV Assembly, Integration, Verification AOA Angle of Attack CAD Computer Aided Design CFD Computational Fluid Dynamics GLOW Gross Lift-Off Mass GNC Guidance Navigation and Control IR Infra-Red LEOExpand
Phys
  • Rev. Lett. 112, 227001
  • 2014
Nat
  • Phys. 10, 97
  • 2014
Nature Phys
  • 10, 225
  • 2014
Nature Phys
  • 10, 1
  • 2014
Phys
  • Rev. Lett. 112, 047001
  • 2014
Phys
  • Rev. B 89, 100502(R)
  • 2014
Nature Comm
  • 4, 1914
  • 2013
Phys
  • Rev. Lett. 110, 207001 (2013); J. Am. Chem. Soc. 135, 3158,
  • 2013
...
1
2
3
4
...