Structural phase transition in Ba(Fe0.973Cr0.027)2As2 single crystals

被引：16
作者：
Bud'ko, S. L. [1 ]
Nandi, S.
Ni, N.
Thaler, A.
Kreyssig, A.
Kracher, A.
Yan, J. -Q.
Goldman, A. I.
Canfield, P. C.
机构：
[1] Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA
来源：
PHYSICAL REVIEW B | 2009年 / 80卷 / 01期
关键词：
barium compounds; chromium compounds; electrical resistivity; Hall effect; iron compounds; magnetic susceptibility; magnetic transition temperature; space groups; thermodynamics; X-ray diffraction;
D O I：
10.1103/PhysRevB.80.014522
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present thermodynamic, structural, and transport measurements on Ba(Fe0.973Cr0.027)(2)As-2 single crystals. All measurements reveal sharp anomalies at similar to 112 K. Single crystal x-ray diffraction identifies the structural transition as a first order, from the high-temperature tetragonal I4/mmm to the low-temperature orthorhombic Fmmm structure, in contrast to an earlier report.
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页数：4
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