Dielectric properties of fine-grained triglycine sulphate (TGS)

The dielectric permittivity ε′ values of triglycine sulphate (TGS) compressed powders with different grain sizes: (1–300) μm have been measured from 300 to 350 K. It has been shown that ε′max and transition temperature Tc for the average grain size of about 30 μm behave as predicted by the theory of Wang et al. [J. Phys: Condens. Matter 7 (1995) 7163] for cylindric particle geometry.