Large reversible caloric effect in FeRh thin films via a dual-stimulus multicaloric cycle

Abstract

Refrigeration devices based on giant magnetocaloric materials are hampered by an irreversible caloric effect associated with large magnetic hysteresis. Here, Liu et al. report a multicaloric refrigeration cycle in FeRh thin films coupled to a ferroelectric BaTiO3substrate, demonstrating reversibility and conversion of hysteretic losses.