Effect of crystal polarity on irradiation-produced secondary defects in CdTe

Abstract

Electron irradiation of CdTe in a high voltage electron microscope produced faulted dislocation loops on {111} plane with a triangular shape oriented in one direction, which reflects the crystal polarity. The loops are of interstitial type and bounded only by one type of the Frank partial or the α-Frank partial. The result is discussed in terms of a possible difference in the core structure between α- and β-Frank partials.