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

S. L. Bud'ko; S. Nandi; N. Ni; A. Thaler; A. Kreyssig; A. Kracher; J. Q. Yan; A. I. Goldman; P. C. Canfield

doi:10.1103/PhysRevB.80.014522

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

S. L. Bud'ko, S. Nandi, N. Ni, A. Thaler, A. Kreyssig, A. Kracher, J. Q. Yan, A. I. Goldman, P. C. Canfield

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

We present thermodynamic, structural, and transport measurements on Ba (Fe0.973 Cr0.027) 2 As2 single crystals. All measurements reveal sharp anomalies at ∼112K. 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.

Original language	English
Article number	014522
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	80
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevB.80.014522
State	Published - Aug 6 2009
Externally published	Yes

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abstract = "We present thermodynamic, structural, and transport measurements on Ba (Fe0.973 Cr0.027) 2 As2 single crystals. All measurements reveal sharp anomalies at ∼112K. 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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AU - Bud'ko, S. L.

AU - Nandi, S.

AU - Ni, N.

AU - Thaler, A.

AU - Kreyssig, A.

AU - Kracher, A.

AU - Yan, J. Q.

AU - Goldman, A. I.

AU - Canfield, P. C.

PY - 2009/8/6

Y1 - 2009/8/6

N2 - We present thermodynamic, structural, and transport measurements on Ba (Fe0.973 Cr0.027) 2 As2 single crystals. All measurements reveal sharp anomalies at ∼112K. 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.

AB - We present thermodynamic, structural, and transport measurements on Ba (Fe0.973 Cr0.027) 2 As2 single crystals. All measurements reveal sharp anomalies at ∼112K. 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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U2 - 10.1103/PhysRevB.80.014522

DO - 10.1103/PhysRevB.80.014522

M3 - Article

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VL - 80

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 1

M1 - 014522

ER -

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

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