State-of-the-art in Caloric materials

Too cool to work.
Xavier Moya, Emmanuel Defay, Volker Heine and Neil D. Mathur

Nature Physics 11, 202 (2015)

 Caloric materials efficiency map.

Giant magnetocaloric effect by structural transitions

Giant magnetocaloric effect driven by structural transitions
Jian Liu, Tino Gottschall, Konstantin P. Skokov, James D. Moore & Oliver Gutfleisch
Nature Materials 11, 620 (2012)

Contributions from the magnetic and structural part for a first-order magnetic transition to the MCE.Schematic shows Ni–Mn-based Heusler alloys as an example. Alignment of magnetic moments by adiabatic magnetization results in the sample heating up (top row); simultaneously the structural transition from low-magnetization and twinn…

Toroidocaloric effect

Thermodynamics of ferrotoroidic materials: Toroidocaloric effect
Teresa Castán and Antoni Planes, Avadh Saxena
e144429 (application/pdf Object)

Toroidocaloric effect as a function of temperature and selected values of the applied toroidal field, κ = 0.90,1.0, and 1.05.