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

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

Materials Science 2009-07-28 v1 Superconductivity

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

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Abstract

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

Keywords

single crystal superconductivity phase transitions crystal growth and phase transitions

Cite

@article{arxiv.0906.4299,
  title  = {Structural phase transition in Ba(Fe0.973Cr0.027)2As2 single crystals},
  author = {S. L. Bud'ko and S. Nandi and N. Ni and A. Thaler and A. Kreyssig and A. Kracher and J. -Q. Yan and A. I. Goldman and P. C. Canfield},
  journal= {arXiv preprint arXiv:0906.4299},
  year   = {2009}
}

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