Physics – Condensed Matter – Superconductivity
Scientific paper
2011-02-09
Phys. Rev. B 83, 052501 (2011)
Physics
Condensed Matter
Superconductivity
A version of this work was posted (arXiv:1005.1761) as a comment on a Science paper entitled "Nematic Electronic Structure in
Scientific paper
10.1103/PhysRevB.83.052501
Recently reported quasiparticle interference imaging in underdoped Ca(Fe{1-x}Co{x})_2As{2} shows pronounced C{2} asymmetry that is interpreted as an indication of an electronic nematic phase with a unidirectional electron band, dispersive predominantly along the $b$-axis of this orthorhombic material. On the other hand, even more recent transport measurements on untwinned samples show near isotropy of the resistivity in the $ab$ plane, with slightly larger conductivity along a (and not b). We show that in fact both sets of data are consistent with the calculated ab initio Fermi surfaces, which has a decisively broken C_{4}, and yet similar Fermi velocity in both directions. This reconciles completely the apparent contradiction between the conclusions of the STM and the transport experiments.
Argyriou Dimitri N.
Kimber Simon A. J.
Mazin Igor I.
No associations
LandOfFree
Quasiparticle interference in antiferromagnetic parent compounds of Fe-based superconductors does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Quasiparticle interference in antiferromagnetic parent compounds of Fe-based superconductors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quasiparticle interference in antiferromagnetic parent compounds of Fe-based superconductors will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-650585