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Electronic Structure of Iron- Pnictide SmO1-xFxFe As Superconductor Using X- Ray Absorption Spectroscopy

Author Affiliations

  • 1Department of Physics, Banasthali University, P.O. Banasthali Vidyapith, INDIA
  • 2 Department of Physics, University of Rajasthan, Jaipur, INDIA
  • 3 Department of Pure & Applied Physics, University of Kota, Kota, INDIA

Res. J. Recent Sci., Volume 2, Issue (ISC-2012), Pages 15-17, February,2 (2013)

Abstract

In this paper electronic structure of Fe- based superconductor SmO1-xFxFeAs (x = 0.2) has been studied using polarized X-ray absorption spectroscopy measured at ELLETRA synchrotron Trieste, Italy. The XAFS spectra for Sm M4,5 , Fe L2,3 and O K- edge has been analyzed and the results are explained to show the possible hybridization responsible for superconductivity in these compounds, which may be assumed due to a charge transfer from Sm-O layer to the Fe-As layer as a result of fluorine doping.

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