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

doi:10.1103/PhysRevB.80.144517

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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Abstract

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 language	English (US)
Article number	144517
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	80
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevB.80.144517
State	Published - Oct 15 2009

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.80.144517

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abstract = "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.",

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T1 - Phase diagram of the PrFeAsO1-x Fx superconductor

AU - Rotundu, C. R.

AU - Keane, D. T.

AU - Freelon, B.

AU - Wilson, S. D.

AU - Kim, A.

AU - Valdivia, P. N.

AU - Bourret-Courchesne, E.

AU - Birgeneau, R. J.

PY - 2009/10/15

Y1 - 2009/10/15

N2 - 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.

AB - 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.

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Phase diagram of the PrFeAsO1-x Fx superconductor

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