Time, temperature, and field dependence of the remanent magnetization in Cd1−<i>x</i>Mn<i>x</i>Te

Abstract

We have measured the time, temperature, and field dependence of thermoremanent magnetization (TRM) and isothermal magnetization (IRM) for Cd1−xMnxTe with x≂0.225, 0.30, and 0.40 and Tg ∼3.7, 6.8, and 11.7 K, respectively. We found that the field and time dependence of TRM and IRM showed a similar behavior that was found before in other spin-glass systems. The temperature dependence of TRM is such that it goes to zero at a temperature very close to Tg. The magnetization curves for T&amp;gt;Tg can be written in terms of odd powers of the magnetic field.