Key points are not available for this paper at this time.
The linear response of a model of deformable charge-density waves pinned by weak disorder is calculated, including the screening effects of free carriers and using a simple model for the distribution of pinned modes. Owing to the screening of localized pinned collective oscillations, the dielectric function develops a low-frequency loss peak in addition to the expected absorption close to the pinning frequency. These results provide a quantitative explanation of the apparent discrepancies between low-frequency (10 MHz) electrical measurements and higher-frequency (microwave or infrared) measurements of the dielectric response. Implications for measurements of the nonlinear dc conductivity are discussed.
P. B. Littlewood (Sat,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: