Congruent melting of tungsten phosphide at 5 GPa and 3200 °C for growing its large single crystals
(a) XRD patterns of recovered samples synthesized under different high P–T conditions. (b) High P–T forming region of WP. No reaction is observed below black dashed line. Phase-pure WP occurs above black line. Between the two lines formed is WP with by-products of WP2 and WP4.
