Ferroelectric Behaviors in Semiconductive Cd1-xZnxTe Crystals

XAFS studies as well as dielectric and X-ray diffraction studies of II-VI semiconductive ternary alloys Cd1-xZnxTe with x=0.0, 0.05, 0.1, 0.2, 0.3, 0.7 and 1.0 were carried out in the temperature range of 10K to 600K. Ferroelectric phase transitions occurred in the mixed crystals with 0.0phase transition does not occur. An anomaly of the structural phase transition was found in the X-ray diffraction studies, however the local structure determined from the XAFS studies was independent of temperature down to 20K.