Thermobaric Synthesis, Structure, and Properties of Dy x Cu 3 V 4 O 12

The perovskite-like compound Dy x Cu3V4O12 (x = 0.67–0.75) is synthesized under high pressure (P = 4.0–9.0 GPa) and temperature (T = 1000°C). Its crystal structure is determined (Im-3 space group, Z = 2, a = 7.29348(7) A) by means of powder X-ray diffraction. The basic lengths and bond angles are defined. It is found that the high-pressure phase of Dy x Cu3V4O12 is characterized by metallic conductivity and paramagnetic properties.