Abstract
Ferroelectricity in ${\mathrm{Zn}}_{\mathrm{x}}$${\mathrm{Cd}}_{1\mathrm{\ensuremath{-}}\mathrm{x}}$Te was found from the temperature variation of the dielectric constant, and from the hysteresis loop. The Zn contents varied from 4% to 45%. No ferroelectricity was found in pure CdTe but all samples containing Zn had a second-order ferroelectric transition. The transition temperature varied from 90 to 245 \ifmmode^\circ\else\textdegree\fi{}C. The polarization was in a 〈111〉 direction. While no existing model matches the rapid rise of the Curie constant for 0lxl0.04, there is some evidence to support an order-disorder transition.
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