Thermodynamic properties of the gadolinium gallium garnet, Gd3Ga5O12, between 0.05 and 25 K

The specific heat, the entropy, the thermal conductivity and the diffusivity of Gd3Ga5O12 have been measured in the presence of an applied magnetic field. Calculations have been performed in order to explain simultaneously all these results within the framework of a simple molecular field theory. The agreement is good above 5 K and at low temperatures the deviations may be explained by the limitations of the simple model.