Electron-phonon coupling in 122 Fe pnictides analyzed by femtosecond time-resolved photoemission

L. Rettig; R. Cortés; H. S. Jeevan; P. Gegenwart; T. Wolf; J. Fink; U. Bovensiepen

doi:10.1088/1367-2630/15/8/083023

Electron-phonon coupling in 122 Fe pnictides analyzed by femtosecond time-resolved photoemission

Superconductivity 2013-08-13 v1

Authors: L. Rettig , R. Cortés , H. S. Jeevan , P. Gegenwart , T. Wolf , J. Fink , U. Bovensiepen

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Abstract

Based on results from femtosecond time-resolved photoemission, we compare three different methods for determination of the electron-phonon coupling constant {\lambda} in Eu and Ba-based 122 FeAs compounds. We find good agreement between all three methods, which reveal a small {\lambda} < 0.2. This makes simple electron-phonon mediated superconductivity unlikely in these compounds.

Keywords

electron-phonon coupling 122 Fe pnictides time-resolved photoemission superconductivity Eu-based compounds Ba-based compounds

Cite

@article{arxiv.1304.5355,
  title  = {Electron-phonon coupling in 122 Fe pnictides analyzed by femtosecond time-resolved photoemission},
  author = {L. Rettig and R. Cortés and H. S. Jeevan and P. Gegenwart and T. Wolf and J. Fink and U. Bovensiepen},
  journal= {arXiv preprint arXiv:1304.5355},
  year   = {2013}
}

Comments

11 pages, 3 figures

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