The pseudo‐binary alloy system MgxZn1−xnormalTe has been investigated for 0=x≤0.8 . Compositions containing less than 53 mole per cent (m/o) Mg have a cubic structure with expanded lattice spacings of normalZnTe . For Mg concentrations of 0.53–0.80 m/o the alloys have a hexagonal structure with contracted lattice spacings of normalMgTe . The bandgaps, as determined by electron beam bombardment, vary linearly with composition within the crystalline structure.

Anomalous Hall effects, i.e., peaks in the temperature dependence of the Hall coefficient and Hall mobility, have been observed in liquid-phase-epitaxy (LPE) Hg0.8 Cd0.2Te films. After establishing that surface effects are not the cause of the anomalies and that our LPE films are indeed n type, we propose an inhomogeneity model with a network of extended p-type inclusions in an n-type matrix. Good fits to the experimental data have been obtained by computer simulation based on this model.

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