Pseudogap-less high-Tc superconductivity in BaCoxFe2−xAs2

Open Access
Authors
Publication date 2010
Journal Europhysics Letters
Volume | Issue number 92 | 5
Pages (from-to) 57012
Number of pages 5
Organisations
  • Faculty of Science (FNWI) - Institute of Physics (IoP) - Van der Waals-Zeeman Institute (WZI)
Abstract The pseudogap state is one of the peculiarities of the cuprate high-temperature superconductors. Here we investigate its presence in BaCoxFe2−xAs2, a member of the pnictide family, with temperature-dependent scanning tunneling spectroscopy. We observe that for under, optimally and overdoped systems the gap in the tunneling spectra always closes at the bulk Tc, ruling out the presence of a pseudogap state.
Document type Article
Language English
Published at https://doi.org/10.1209/0295-5075/92/57012
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