Temperature dependence of Vickers hardness for Cd1-xMnxTe (0<x<0.82) single crystals

Abstract

The Cd1-xMnxTe (0≤x≤0.82) single crystals were grown by the vertical Bridgman method. The Vickers hardnesses of the grown crystals were measured as a function of Mn composition and temperature for the first time. The activation energy was determined for the dislocation motion from the relation between temperature and hardness, and it was decreased as increasing x in Cd1-xMnxTe single crystals. Also, the Vickers hardness HV was decreased as increasing temperature and increased as Mn composition x.