Abstract Scope |
Mechanical stress can modify the magnitude of a magnetocaloric effect, the operating temperature, and the hysteretic losses. Mechanical stress can also create new phase transitions, permitting large magnetocaloric effects to be explored in an expanded range of materials, and even be used to drive mechanocaloric effects in magnetocaloric materials. Moreover, the magnetic properties of epitaxial thin films of soft magnetic materials can be electrically controlled via piezoelectric strain from ferroelectric substrates, permitting large magnetoelectric effects at room temperature. Here I will present advances on magnetocaloric materials tuned with and driven by stress, and on magnetoelectric heterostructures driven by electric field. |