Phase diagram of the PrFeAsO1-x Fx superconductor

C. R. Rotundu, D. T. Keane, B. Freelon, S. D. Wilson, A. Kim, P. N. Valdivia, E. Bourret-Courchesne, R. J. Birgeneau

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57 Scopus citations


The electronic phase diagram of PrFeAsO1-x Fx (0≤x≤0.225) has been determined using synchrotron x-ray powder-diffraction, magnetization, and resistivity measurements. The structural transition temperature is suppressed from 154 to ≈ 120K and the magnetic phase transitions of both iron and praseodymium ions are completely suppressed by x≈0.08 fluorine doping, coinciding with the emergence of superconductivity. The optimal doping is x≈0.15 when TC = 47 K while the maximum solubility of fluorine in PrFeAsO1-x Fx is reached around x=0.22. The structural, magnetic, and superconducting phase diagram is presented.

Original languageEnglish (US)
Article number144517
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number14
StatePublished - Oct 15 2009

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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