The ac electrical properties of sulfur were measured at pressures from 20 to 50 GPa. The loss tangent vs. frequency data indicate dielectric anomalies in the pressure range of structural transformations: tanδrises by about one order of magnitude as the frequency decease from 0.8 to 0.4 kHz and by a factor of more than 2 in the range 3-10 kHz.
展开▼