Paraelectric Behavior of PbTe

Abstract

Capacitance-voltage measurements on graded junction diodes of PbTe which suggest that the static dielectric constant obeys a Curie-law temperature dependence with ${T}_{C}\ensuremath{\simeq}(\ensuremath{-}79\ifmmode\pm\else\textpm\fi{}4)$ \ifmmode^\circ\else\textdegree\fi{}K are reported. Evidence for nonlinear dependence of dielectric polarization on electric field is also given.