Longitudinal modes of spin fluctuations in iron-based superconductors

Qiang Zhang; Jiangping Hu

doi:10.1103/PhysRevB.96.054518

Longitudinal modes of spin fluctuations in iron-based superconductors

Superconductivity 2017-08-30 v2

Authors: Qiang Zhang , Jiangping Hu

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Abstract

Iron-based superconductors can exhibit different magnetic ground states and are in a critical magnetic region where frustrated magnetic interactions strongly compete with each other. Here we investigate the longitudinal modes of spin fluctuations in an unified effective magnetic model for iron-based superconductors. We focus on the collinear antiferromagnetic phase (CAF) and calculate the behavior of the longitudinal modes when different phase boundaries are approached. The results can help to determine the nature of the magnetic fluctuations in iron-based superconductors.

Keywords

iron-based superconductors spin fluctuations longitudinal modes collinear antiferromagnetic phase magnetic interactions

Cite

@article{arxiv.1703.10721,
  title  = {Longitudinal modes of spin fluctuations in iron-based superconductors},
  author = {Qiang Zhang and Jiangping Hu},
  journal= {arXiv preprint arXiv:1703.10721},
  year   = {2017}
}

Comments

6 pages, 4 figures

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