Title: Pressure-induced Superconductivity and Its Disappearance under Pressure
in CeFeAsO1-xFx

Fig.1:The Rietveld refinement pattern and difference plots of the powder X-ray diffraction data for
pulse current sintered (PCS) specimens of CeFeAsO1-xFx (x=0.13) at room temperature. The rows
of ticks indicate the Bragg-peak positions for the main phase.

Fig.2:Temperature dependence of electrical resistivity under various pressures up to 2.3 GPa
obtained by using a piston cylinder cell for CeFeAsO1-xFx (x=0.13). The data are intentionally
shifted along the longitudinal axis for clarity.

Fig.3:Temperature dependence of electrical resistivity under various pressures up to 6.9 GPa
obtained by using an opposed anvil cell for CeFeAsO1-xFx (x=0.13). The data are intentionally
shifted along the longitudinal axis for clarity.

Fig.4:Temperature-pressure phase diagram of CeFeAsO1-xFx (x=0.13) constructed by the plots
of TSDW and Tconset.



