Evaluation of a long-time temperature drift in a commercial Quantum   Design MPMS SQUID magnetometer using Gd$_2$O$_3$ as a standard
  The long-time temperature drift in a commercial Quantum Design MPMS SQUID magnetometer was evaluated using time-dependent magnetization measurements of Gd$_2$O$_3$. In contrast to earlier claims, the amplitude of the drift was found not to exceed 1-1.5 K. 30 minutes after system stabilization the temperature deviation did not exceed 0.2 K and the temperature was fully stabilized in less than 3 hours. 
S.L. Bud'ko, and P.C. Canfield