Raman-scattering study of KxSr1-xFe2As2 (x=0.0, 0.4)

被引：83

作者：

Litvinchuk, A. P. ^{[1
,2
]}

Hadjiev, V. G. ^{[1
,3
]}

Iliev, M. N. ^{[1
,2
]}

Lv, Bing ^{[1
,4
]}

Guloy, A. M. ^{[1
,4
]}

Chu, C. W. ^{[1
,2
,5
]}

机构：

[1] Univ Houston, Texas Ctr Superconduct, Houston, TX 77204 USA

[2] Univ Houston, Dept Phys, Houston, TX 77204 USA

[3] Univ Houston, Dept Mech Engn, Houston, TX 77204 USA

[4] Univ Houston, Dept Chem, Houston, TX 77204 USA

[5] Hong Kong Univ Sci & Technol, Hong Kong, Hong Kong, Peoples R China

来源：

PHYSICAL REVIEW B | 2008年 / 78卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.78.060503

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Polarized Raman spectra of nonsuperconducting SrFe(2)As(2) and superconducting K(0.4)Sr(0.6)Fe(2)As(2) (T(c)=37 K) microcrystals are reported. All four-phonon modes (A(1g)+B(1g)+2E(g)) 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 SrFe(2)As(2) or the superconducting transition in K(0.4)Sr(0.6)Fe(2)As(2).

引用

页数：4

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