• Corpus ID: 118547027

Electron correlation effects and scattering rates in Fe$_{1+y}$Te$_{1-x}$Se$_x$ superconductor

  title={Electron correlation effects and scattering rates in Fe\$\_\{1+y\}\$Te\$\_\{1-x\}\$Se\$\_x\$ superconductor},
  author={Setti Thirupathaiah and J{\"o}rg Fink and Pankaj Kumar Maheswari and V. P. S. Awana and E. Slooten and Y. K. Huang and Mark S. Golden and Felix Lochner and Ruslan Ovsyannikov and Hermann A. Durr and Ilya M. Eremin},
  journal={arXiv: Superconductivity},
Using angle-resolved photoemission spectroscopy we have studied the low-energy electronic structure and the Fermi surface topology of Fe$_{1+y}$Te$_{1-x}$Se$_x$ superconductors. Similar to the known iron pnictides we observe hole pockets at the center and electron pockets at the corner of the Brillouin zone (BZ). However, on a finer level, the electronic structure around the $\Gamma$- and $Z$-points in $k$-space is substantially different from other iron pnictides, in that we observe two hole… 

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