Adiabatic temperature change from non-adiabatic measurements

In this work, we present a methodology to obtain the adiabatic temperature change from non-adiabatic measurements, which combines a homemade calorimetric device (used to measure the temperature change of magnetic materials) and a thermodynamic model (that accounts for the energy losses). This model fits optimally the thermomagnetic responses of metallic gadolinium at different conditions. The results for gadolinium indicate that, with the combination of our experimental setup and thermodynamic model, we are able to determine the real adiabatic temperature change in any magnetic material at stable equilibrium, even far from adiabatic conditions.