Spin glass behavior of Cd1−<i>x</i>Mn<i>x</i>Te below the nearest-neighbor percolation limit

Abstract

Magnetization measurements down to 10 mK of Cd1−xMnxTe for Mn concentrations 0.01≤x≤0.15 show spin glass behavior. Such behavior is attibuted to short-range exchange and dipolar interactions. Both interactions are used to explain the concentration dependence of the spin freezing temperatures for 0.01≤x≤0.6, the short-range exchange dominating at high concentrations, and the dipolar interaction at low concentrations.