Publication Date:
2015-06-16
Description:
We study the dependence of the magnetocaloric effect on the magnetic field-change-rate the first order magnetostructural transition in Mn 3 GaC by measuring the adiabatic temperature change Δ T at three different time scales: 11 mT s −1 , 700 mT s −1 , and ∼1000 T s −1 . We find that the maximum adiabatic temperature-change of about 5 K is reached in the 11 mT s −1 and 700 mT s −1 rates, whereas for the ∼1000 T s −1 -rate the transition lags the change in the magnetic field so that the maximum adiabatic temperature-change is not attained.
Print ISSN:
0021-8979
Electronic ISSN:
1089-7550
Topics:
Physics