Raman Scattering Study of the Lattice Dynamics of Superconducting LiFeAs

Y. J. Um; J. T. Park; B. H. Min; Y. J. Song; Y. S. Kwon; B. Keimer; M. Le Tacon

doi:10.1103/PhysRevB.85.012501

Raman Scattering Study of the Lattice Dynamics of Superconducting LiFeAs

Superconductivity 2012-01-13 v2 Strongly Correlated Electrons

Authors: Y. J. Um , J. T. Park , B. H. Min , Y. J. Song , Y. S. Kwon , B. Keimer , M. Le Tacon

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

We report an investigation of the lattice dynamical properties of LiFeAs using inelastic light scattering. Five out of the six expected phonon modes are observed. The temperature evolution of their frequencies and linewidths is in good agreement with an anharmonic-decay model. We find no evidence for substantial electron-phonon coupling, and no superconductivity-induced phonon anomalies.

Keywords

LiFeAs Raman scattering lattice dynamics phonon modes anharmonic decay electron-phonon coupling iron-based superconductor

Cite

@article{arxiv.1109.5797,
  title  = {Raman Scattering Study of the Lattice Dynamics of Superconducting LiFeAs},
  author = {Y. J. Um and J. T. Park and B. H. Min and Y. J. Song and Y. S. Kwon and B. Keimer and M. Le Tacon},
  journal= {arXiv preprint arXiv:1109.5797},
  year   = {2012}
}

Comments

5 pages, 3 figures, 1 table

Related papers

View all related →