Elastocaloric, barocaloric and magnetocaloric effects in spin crossover polymer composite films.

ABSTRACT: Giant barocaloric effects were recently reported for spin-crossover materials. The volume change in these materials suggests that the transition can be influenced by uniaxial stress, and give rise to giant elastocaloric properties. However, no measurements of the elastocaloric properties in these compounds have been reported so far. Here, we demonstrated the existence of elastocaloric effects associated with the spin-crossover transition. We dissolved particles of ([Fe(L)₂](BF₄)₂, [L=2,6di(pyrazol-1-yl)pyridine]) into a polymeric matrix. We showed that the application of tensile uniaxial stress to a composite film resulted in a significant elastocaloric effect. The elastocaloric effect in this compound required lower applied stress than for other prototype

SUBMITTER: Lunser K 

PROVIDER: S-EPMC11263356 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature