Raman-scattering study of Kx Sr1-x Fe2 As2 (x=0.0,0.4)

A. P. Litvinchuk, V. G. Hadjiev, M. N. Iliev, Bing Lv, A. M. Guloy, C. W. Chu

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79 Citations (Scopus)

Abstract

Polarized Raman spectra of nonsuperconducting SrFe2 As2 and superconducting K0.4 Sr0.6 Fe2 As2 (Tc =37K) microcrystals are reported. All four-phonon modes (A1g + B1g +2 Eg) allowed by symmetry are found and identified. Shell model gives reasonable description of the spectra. No detectable anomalies are observed near the tetragonal-to-orthorhombic transition in SrFe2 As2 or the superconducting transition in K0.4 Sr0.6 Fe2 As2.

Original languageEnglish
Article number060503
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume78
Issue number6
DOIs
Publication statusPublished - 2008 Aug 14

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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