Fig. 6: Reversible barocaloric effects at 500 bar.
From: Colossal barocaloric effects with ultralow hysteresis in two-dimensional metal–halide perovskites
Isobaric entropy changes (ΔSib) during heating and cooling at ambient pressure and 500 bar are shown for (a) (DA)2MnCl4 and (b) (NA)2CuBr4. Note that the ΔSib curves include contributions from the heat capacity. The area between ΔSib(T, 1 bar)heating and ΔSib(T, 500 bar)cooling curves denotes the temperature range over which both reversible isothermal entropy changes (ΔSit,rev) and reversible adiabatic temperature changes (ΔTad,rev) are accessible.
