The discharge current measured for glassy polyvinylacetate is expressed by employing the Kohlrausch law as the dielectric response function over the whole range of times used, 3×, where is the Kohlrausch relaxation time, if another type of decay observed at longer times, most likely due to electrode polarization of the Cole-Davidson type, is properly eliminated. However, it is shown from a precision measurement of the complex permittivity that at T> the short-time behavior of the response function is slightly but evidently different from that of the Kohlrausch function.
- Received 24 November 1987
DOI:https://doi.org/10.1103/PhysRevB.37.8471
©1988 American Physical Society