Giant caloric effects based on the combination of magnetic field and uniaxial stress
New publication
2020/12/04
The increasing demand for artificial cold and the ever-growing importance of climate protection call for new energy-efficient and environmentally-friendly alternatives to the conventionally used vapor-compression technology. The most promising candidate is solid-state caloric cooling which is based on the thermal response of a material to an external stimulus such as magnetic field, electric field, uniaxial stress or hydrostatic pressure. In our joint work with researchers from Helmholtz-Zentrum Dresden-Rossendorf and Universidad de Barcelona we demonstrate that the combination of more than one external stimulus can largely outperform the single caloric response. In particular, we show for the metamagnetic shape-memory alloy Ni-Mn-In a doubling of the caloric effect by the combined action of magnetic field and uniaxial stress compared to the corresponding single magneto- and elastocaloric one.
Read more:
Multicaloric effects in Metamagnetic Heusler Ni-Mn-In under uniaxial stress and magnetic field
A.Gràcia-Condal, T. Gottschall, L. Pfeuffer, O. Gutfleisch, A. Planes, L. Mañosa
in Applied Physics Reviews, Vol.7, Issue 4, 2020
