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Suppression of antiferromagnetic order and orthorhombic distortion in superconducting Ba ( Fe0.961 Rh0.039 )2As 2

  • A. Kreyssig
  • , M. G. Kim
  • , S. Nandi
  • , D. K. Pratt
  • , W. Tian
  • , J. L. Zarestky
  • , N. Ni
  • , A. Thaler
  • , S. L. Bud'Ko
  • , P. C. Canfield
  • , R. J. McQueeney
  • , A. I. Goldman

Research output: Contribution to journalArticlepeer-review

39 Scopus citations

Abstract

Neutron-diffraction and high-resolution x-ray diffraction studies find that, similar to the closely related underdoped Ba (Fe1-x Co x)2As2 superconducting compounds, Ba (Fe 0.961 Rh0.039)2As2 shows strong evidence of competition and coexistence between superconductivity and antiferromagnetic order below the superconducting transition, Tc =14 K. The transition temperatures for both the magnetic order and orthorhombic distortion are in excellent agreement with those inferred from resistivity measurements, and both order parameters manifest a distinct decrease in magnitude below Tc. These data suggest that the strong interaction between magnetism and superconductivity is a general feature of electron-doped Ba (Fe1-x T Mx)2 As2 superconductors (TM=transition metal).

Original languageEnglish
Article number134512
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume81
Issue number13
DOIs
StatePublished - Apr 12 2010
Externally publishedYes

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