The mechanocaloric potential of spin crossover compounds

TL;DR

This paper evaluates the potential of spin crossover compounds as a new class of materials exhibiting significant mechanocaloric effects, estimating their temperature change capabilities and required pressures based on literature data.

Contribution

It provides the first assessment of spin crossover compounds' mechanocaloric potential, including estimates of temperature change and pressure requirements.

Findings

Estimated maximum adiabatic temperature changes for several compounds.

Identified relatively low pressures needed to observe the effects.

Highlighted the potential of SCO compounds as mechanocaloric materials.

Abstract

We present a first evaluation of the potential for spin crossover (SCO) compounds to be considered as a new class of giant mechanocaloric effect material. From literature data on the variation of the spin crossover temperature with pressure, we estimate the maximum available adiabatic temperature change for several compounds and the relatively low pressures that may be required to observe these effects.