| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Current Trends in Magnetocaloric Materials: An FMD Symposium in Honor of Ekkes Brueck
|
| Presentation Title |
Under Pressure: Probing Magneto-structural Coupling in MCE Materials |
| Author(s) |
Luana Caron, Sanjay Singh, Ekkes Brueck, Claudia Felser |
| On-Site Speaker (Planned) |
Luana Caron |
| Abstract Scope |
Applications of the magnetocaloric effect, specially heat pumps, rely on large reversible adiabatic temperature and entropy changes observed around first order phase transitions. At the core of the large effect is the strong magneto-structural coupling responsible for first order phase transitions where both the magnetic and crystal lattices contribute significantly to the MCE. Thus, understanding the magneto-structural coupling in magnetocaloric materials is paramount for the development of novel, better materials for applications. In this work the effect of hydrostatic pressure on the magneto-structural coupling in MnCoGe, (Fe,Mn)2(P,Si) and Ni2Mn1.4In0.6 magnetocaloric materials is explored. The effect of hydrostatic pressure on the magneto-structural coupling sheds light on the origin of irreversibilities due thermal hysteresis in these materials, pointing a way to improve their properties and therefore make them more efficient for applications. |
| Proceedings Inclusion? |
Undecided |