Phase transition and large caloric effect in multi-component intermetallics

Materials that exhibit a first-order phase transition in response to varying temperature, magnetic field, or pressure are of great interest for basic and applied science. Particularly, multi-component intermetallics are the foundation of a vast basic science playground, where compounds with first-order phase transition could show multifunctionality, including large magnetocaloric, shape memory, and unusual magneto-transport phenomena. In this presentation, we will present the phase transition, magnetic and magnetocaloric effect of multi-component high-entropy type multi-caloric alloys that constitute abundant and non-toxic elements. Microstructural manipulations, phase stability, and compositional engineering to tune the phase transitions, magnetic and caloric properties of these materials will be discussed.