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

doi:10.1103/PhysRevB.78.060503

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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摘要

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.

原文	English
文章編號	060503
期刊	Physical Review B - Condensed Matter and Materials Physics
卷	78
發行號	6
DOIs	https://doi.org/10.1103/PhysRevB.78.060503
出版狀態	Published - 2008 8月 14

All Science Journal Classification (ASJC) codes

電子、光磁材料
凝聚態物理學

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10.1103/PhysRevB.78.060503

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

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AU - Litvinchuk, A. P.

AU - Hadjiev, V. G.

AU - Iliev, M. N.

AU - Lv, Bing

AU - Guloy, A. M.

AU - Chu, C. W.

PY - 2008/8/14

Y1 - 2008/8/14

N2 - 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.

AB - 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.

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ER -

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

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