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25 April 2024

» arxiv » 1307.1280

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Unusual band renormalization in the simplest iron based superconductor
J. Maletz ; V. B. Zabolotnyy ; D. V. Evtushinsky ; S. Thirupathaiah ; A. U. B. Wolter ; L. Harnagea ; A. N. Yaresko ; A. N. Vasiliev ; D. A. Chareev ; E. D. L. Rienks ; B. Büchner ; S. V. Borisenko ;
Date:	4 Jul 2013
Abstract:	The electronic structure of the iron chalcogenide superconductor FeSe_{1-x} was investigated by high- resolution angle-resolved photoemission spectroscopy (ARPES). The results were compared to DFT calculations showing some significant differences between the experimental electronic structure of FeSe_{1-x}, DFT calculations and existing data on FeSe_{x}Te_{1-x}. The bands undergo a pronounced orbital dependent renormalization, different from what was observed for FeSe_{x}Te_{1-x} and any other pnictides.
Source:	arXiv, 1307.1280
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