• Corpus ID: 118520270

Electron-phonon coupling and momentum-dependent electron dynamics in EuFe2As2 using time- and angle-resolved photoemission spectroscopy

  title={Electron-phonon coupling and momentum-dependent electron dynamics in EuFe2As2 using time- and angle-resolved photoemission spectroscopy},
  author={Laurenz Rettig and R. Cort'es and Setti Thirupathaiah and Philipp Gegenwart and Hirale S. Jeevan and Th. Wolf and Uwe Bovensiepen and Martin Wolf and Hermann A. Durr and J{\"o}rg Fink},
  journal={arXiv: Superconductivity},
The Fe pnictide parent compound EuFe2As2 exhibits a strongly momentum dependent carrier dynamics around the hole pocket at the center of the Brillouin zone. The very different dynamics of electrons and holes cannot be explained solely by intraband scattering and interband contributions have to be considered. In addition, three coherently excited modes at frequencies of 5.6, 3.1 and 2.4 THz are observed. An estimate of the electron-phonon coupling parameter reveals lambda < 0.5, suggesting a… 
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* Corresponding author: uwe.bovensiepen@uni-due