Pressure Induced Suppression to the Valence Change Transition in EuPdAs

Figure 1

Powder X-ray diffraction patterns and the Rietveld refinement profile of the EuPdAs sample at room temperature. All main diffraction peaks can be indexed well by the P63/mmc space group (hexagonal structure) with Å and Å with Eu₅As₃ and Pd₂As as the impurity phases. The ratio between EuPdAs and the impurities is found to be 90 : 10.