Modeling Antiferromagnetic Phase in Iron Pnictides: Weakly Ordered State
Superconductivity
2009-12-14 v2
Abstract
We examine electronic states of antiferromagnetic phase in iron pnictides by mean-field calculations of the optical conductivity. We find that a five-band model exhibiting a small magnetic moment, inconsistent with the first-principles calculations, reproduces well the excitation spectra characterized by a multi-peak structure emerging below the N\'{e}el temperature at low energy, together with an almost temperature-independent structure at high energy. Investigating the interlayer magnetoresistance for this model, we also predict its characteristic field dependence reflecting the Fermi surface.
Cite
@article{arxiv.0909.1081,
title = {Modeling Antiferromagnetic Phase in Iron Pnictides: Weakly Ordered State},
author = {E. Kaneshita and T. Morinari and T. Tohyama},
journal= {arXiv preprint arXiv:0909.1081},
year = {2009}
}