In the journal Applied Physics Reviews, an international research team from the University of Barcelona, the Helmholtz-Zentrum Dresden-Rossendorf (HZDR), and TU Darmstadt report on possibilities for implementing more efficient and environmentally friendly refrigeration processes. For this purpose, they investigated the effects of simultaneously exposing certain alloys to magnetic fields and mechanical stress.
source https://phys.org/news/2020-12-cool-efficiently-environmentally-friendly-refrigeration.html