hide
Free keywords:
-
Abstract:
We present direct measurements of the magnetocaloric effect on a
Fe2P-based compound induced by a milliseconds pulsed magnetic field of 1
T to test their possible use in high frequency (up to 100 Hz)
thermomagnetic cycles. The reported measurements were performed with an
innovative and versatile non-contact set up based on the mirage effect.
The adiabatic temperature change of a MnFeP0.45As0.55 sample is
presented and compared with measurements performed varying the same
magnetic field in a time interval of 1 s and 100 ms. These results
demonstrate the absence of kinetic constraints in the first-order phase
transition of this sample induced on the milliseconds time scale. The
study of the materials' response to millisecond magnetic field pulses
represents a fundamental test for the development of more powerful and
efficient magnetic refrigerators. (C) 2016 AIP Publishing LLC.
