Evolution of two-step structural phase transition in Fe1+dTe detected by low-temperature x-ray diffraction

Yoshikazu Mizuguchi; Kentaro Hamada; Kazuki Goto; Hiroshi Takatsu; Hiroaki Kadowaki; Osuke Miura

doi:10.1016/j.ssc.2012.03.022

Evolution of two-step structural phase transition in Fe1+dTe detected by low-temperature x-ray diffraction

Superconductivity 2015-06-04 v1

Authors: Yoshikazu Mizuguchi , Kentaro Hamada , Kazuki Goto , Hiroshi Takatsu , Hiroaki Kadowaki , Osuke Miura

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Abstract

The low-temperature crystal structure of Fe1.13Te, which exhibits an anomalous two-step magnetic transition, was clarified by the systematic x-ray diffraction measurements. It was found that two-step structural phase transition, tetragonal-orthorhombic-monoclinic, occurred correspondingly to the two-step magnetic transition. The detailed analysis of the profile at 5 K indicated the coexistence of the minor orthorhombic area inside the major monoclinic lattice, which could explain the lower-shift (suppression) of the antiferromagnetic transition temperature in Fe1.13Te and suggest a possibility of superconductivity at the domain boundary.

Keywords

phase transitions single crystal superconductivity magnetic structure

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@article{arxiv.1202.2484,
  title  = {Evolution of two-step structural phase transition in Fe1+dTe detected by low-temperature x-ray diffraction},
  author = {Yoshikazu Mizuguchi and Kentaro Hamada and Kazuki Goto and Hiroshi Takatsu and Hiroaki Kadowaki and Osuke Miura},
  journal= {arXiv preprint arXiv:1202.2484},
  year   = {2015}
}

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12 pages, 3 figures

Evolution of two-step structural phase transition in Fe1+dTe detected by low-temperature x-ray diffraction

Abstract

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