Thermomagnetic history dependence of magnetocaloric effect in Ni50Mn34In16

A large inverse magnetocaloric effect has been reported to be associated with the austenite to martensite phase transition in Ni50Mn34In16. It is shown here that the magnitude of the observed magnetocaloric effect as well as effective refrigerant capacity depend significantly on the thermo-magnetic history of the sample. (c) 2008 American Institute of Physics.