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Spin Crossover Transition Driven by Pressure: Barocaloric Applications
Physica B: Condensed Matter, 2023 This article describes a mean-field theoretical model for Spin-Crossover (SCO) materials and explores its implications. It is based on a simple Hamiltonian that yields the high spin molar fraction as a function of temperature and pressure, as well as a temperature-pressure phase diagram for the SCO transition. In order to test the model, we apply it to
Mario Reis +2 more
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Energies, 2019 Barocaloric cooling is classified as environmentally friendly because of the employment of solid-state materials as refrigerants. The reference and well-established processes are based on the active barocaloric regenerative refrigeration cycle, where the
Ciro Aprea +3 more
doaj +1 more source
Thermodynamics of multicaloric effects in multiferroic materials; application to metamagnetic shape memory alloys and ferrotoroidics [PDF]
, 2017 We develop a general thermodynamic framework to investigate multicaloric effects in multiferroic materials. This is applied to the study of both magnetostructural and magnetoelectric multiferroics.
Castán i Vidal, Maria Teresa +2 more
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Reversible adiabatic temperature changes at the magnetocaloric and barocaloric effects in Fe49Rh51 [PDF]
, 2015 We report on the adiabatic temperature changes (Delta T) associated with the magnetocaloric and barocaloric effects in a Fe49Rh51 alloy, For the magnetocaloric effect, data derived from entropy curves are compared to direct thermometry measurements.
Adrià Gràcia-Condal +9 more
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Towards multicaloric effect with ferroelectrics [PDF]
, 2016 This work was supported in part by the National Science Foundation (Grant No. CMMI-#1361713) and by DOE Ames Laboratory on “The Caloric Materials Consortium”. L.B. acknowledges the support of ARO Grant No. W911NF-16-1-0227. B.D.
Bellaiche, Laurent +6 more
core +3 more sources
Reversible and irreversible colossal barocaloric effects in plastic crystals [PDF]
, 2022 The extremely large latent heat exchanged in phase transitions involving strong molecular orientational disordering has recently led to the proposal of plastic crystals as a feasible solution for solid-state barocaloric eco-friendly cooling technologies.
Aznar, Araceli +8 more
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Improving barocaloric properties by tailoring transition hysteresis in Mn3Cu Sn N antiperovskites
JPhys Energy, 2023 The magnetically frustrated manganese nitride antiperovskite family displays significant changes of entropy under changes in hydrostatic pressure near a first-order antiferromagnetic to paramagnetic phase transition that can be useful for the emerging ...
Frederic Rendell-Bhatti +9 more
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A REVIEW OF MECHANOCALORIC REFRIGERATION DEVICES FROM 2012 TO 2020 [PDF]
, 2022 Solid-State room temperature refrigeration devices have been reported extensively in the last decades with a focus on magnetocaloric effect materials, a thermal response to an applied magnetic field in a solid refrigerant.
Colman, F. C. +2 more
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Large barocaloric effects in thermoelectric superionic materials [PDF]
Physical Review Materials, 2020 We predict the existence of large barocaloric effects above room temperature in the thermoelectric fast-ion conductor ${\mathrm{Cu}}_{2}\mathrm{Se}$ by using classical molecular dynamics simulations and first-principles computational methods. A hydrostatic pressure of 1 GPa induces large isothermal entropy changes of $|\mathrm{\ensuremath{\Delta}}S ...
Jie Min +2 more
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