Fig. 5: Barocaloric performance of (CH3-(CH2)9-NH3)2 MnCl4 single crystal. | NPG Asia Materials

Fig. 5: Barocaloric performance of (CH3-(CH2)9-NH3)2 MnCl4 single crystal.

From: Reversible colossal barocaloric effect dominated by disordering of organic chains in (CH3–(CH2)n−1–NH3)2MnCl4 single crystals

Fig. 5

a Heat flow measured at a rate of temperature of 1 K min−1 under selected pressures and (b) the resultant entropy–temperature curves that take into account the specific heat. c Isothermal entropy change ΔSp induced by pressurization (downside) and depressurization (upside), given by the isothermal subtraction of the entropy curves in (b). d Adiabatic temperature change ΔTp induced by pressurization (downside) and depressurization (upside), given by isentropic subtraction of entropy curves in (b). The atmospheric pressure/P is considered the initial value for the compression/decompression process during subtraction. e Reversible isothermal entropy change ΔSr obtained by overlapping pressurization-induced and depressurization-induced isothermal entropy change curves in (c). f Reversible adiabatic temperature change ΔTr obtained excluding the influence of thermal hysteresis10,19.

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