Structural transition and anisotropic properties of single-crystalline SrFe2 As2

J. Q. Yan; A. Kreyssig; S. Nandi; N. Ni; S. L. Bud'ko; A. Kracher; R. J. McQueeney; R. W. McCallum; T. A. Lograsso; A. I. Goldman; P. C. Canfield

doi:10.1103/PhysRevB.78.024516

Structural transition and anisotropic properties of single-crystalline SrFe2 As2

J. Q. Yan, A. Kreyssig, S. Nandi, N. Ni, S. L. Bud'ko, A. Kracher, R. J. McQueeney, R. W. McCallum, T. A. Lograsso, A. I. Goldman, P. C. Canfield

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166 Scopus citations

Abstract

Platelike single crystals of SrFe2 As2 as large as 3×3×0.5 mm3 have been grown out of Sn flux. The SrFe2 As2 single crystals show a structural phase transition from a high-temperature tetragonal phase to a low-temperature orthorhombic phase at To =198 K, and do not show any sign of superconductivity down to 1.8 K. The structural transition is accompanied by an anomaly in the electrical resistivity, Hall resistivity, specific heat, and the anisotropic magnetic susceptibility. In an intermediate temperature range from 198 to 160 K, single-crystal x-ray diffraction suggests a coexistence of the high-temperature tetragonal and the low-temperature orthorhombic phases.

Original language	English
Article number	024516
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	78
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevB.78.024516
State	Published - Jul 23 2008
Externally published	Yes

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Yan, J. Q., Kreyssig, A., Nandi, S., Ni, N., Bud'ko, S. L., Kracher, A., McQueeney, R. J., McCallum, R. W., Lograsso, T. A., Goldman, A. I., & Canfield, P. C. (2008). Structural transition and anisotropic properties of single-crystalline SrFe2 As2. Physical Review B - Condensed Matter and Materials Physics, 78(2), Article 024516. https://doi.org/10.1103/PhysRevB.78.024516

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title = "Structural transition and anisotropic properties of single-crystalline SrFe2 As2",

abstract = "Platelike single crystals of SrFe2 As2 as large as 3×3×0.5 mm3 have been grown out of Sn flux. The SrFe2 As2 single crystals show a structural phase transition from a high-temperature tetragonal phase to a low-temperature orthorhombic phase at To =198 K, and do not show any sign of superconductivity down to 1.8 K. The structural transition is accompanied by an anomaly in the electrical resistivity, Hall resistivity, specific heat, and the anisotropic magnetic susceptibility. In an intermediate temperature range from 198 to 160 K, single-crystal x-ray diffraction suggests a coexistence of the high-temperature tetragonal and the low-temperature orthorhombic phases.",

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T1 - Structural transition and anisotropic properties of single-crystalline SrFe2 As2

AU - Yan, J. Q.

AU - Kreyssig, A.

AU - Nandi, S.

AU - Ni, N.

AU - Bud'ko, S. L.

AU - Kracher, A.

AU - McQueeney, R. J.

AU - McCallum, R. W.

AU - Lograsso, T. A.

AU - Goldman, A. I.

AU - Canfield, P. C.

PY - 2008/7/23

Y1 - 2008/7/23

N2 - Platelike single crystals of SrFe2 As2 as large as 3×3×0.5 mm3 have been grown out of Sn flux. The SrFe2 As2 single crystals show a structural phase transition from a high-temperature tetragonal phase to a low-temperature orthorhombic phase at To =198 K, and do not show any sign of superconductivity down to 1.8 K. The structural transition is accompanied by an anomaly in the electrical resistivity, Hall resistivity, specific heat, and the anisotropic magnetic susceptibility. In an intermediate temperature range from 198 to 160 K, single-crystal x-ray diffraction suggests a coexistence of the high-temperature tetragonal and the low-temperature orthorhombic phases.

AB - Platelike single crystals of SrFe2 As2 as large as 3×3×0.5 mm3 have been grown out of Sn flux. The SrFe2 As2 single crystals show a structural phase transition from a high-temperature tetragonal phase to a low-temperature orthorhombic phase at To =198 K, and do not show any sign of superconductivity down to 1.8 K. The structural transition is accompanied by an anomaly in the electrical resistivity, Hall resistivity, specific heat, and the anisotropic magnetic susceptibility. In an intermediate temperature range from 198 to 160 K, single-crystal x-ray diffraction suggests a coexistence of the high-temperature tetragonal and the low-temperature orthorhombic phases.

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U2 - 10.1103/PhysRevB.78.024516

DO - 10.1103/PhysRevB.78.024516

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JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 2

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ER -

Structural transition and anisotropic properties of single-crystalline SrFe2 As2

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