Impedance spectroscopy of synthetic proustite at high pressures
The effect of high pressure (up to 40 GPa) and alternating electric field frequency (100 Hz–500 kHz) on the electrical properties of synthesized single-crystal proustite Ag3AsS3 is studied. The behavior of real and imaginary parts of impedance upon an increase in pressure confirms earlier data on the closing of valence and conduction zones, and on the material’s transition to the metal state at ∼30 GPa.