  Magneto-caloric effects (MCEs) measurement system in adiabatic condition is
proposed to investigate the thermodynamic properties in pulsed magnetic fields
up to 55 T. With taking the advantage of the fast field- sweep rate in pulsed
field, adiabatic measurements of MCEs were carried out at various temperatures.
To obtain the prompt response of the thermometer in the pulsed field, a thin
film thermometer is grown directly on the sample surfaces. The validity of the
present setup was demonstrated in the wide temperature range through the
measurements on Gd at about room temperature and on Gd3Ga5O12 at low
temperatures. The both results show reasonable agreement with the data reported
earlier. By comparing the MCE data with the specific heat data, we could
estimate the entropy as functions of magnetic field and temperature. The
results demonstrate the possibility that our approach can trace the change in
transition temperature caused by the external field.
