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Colossal barocaloric effects in plastic crystals
- Source :
- Nature. 567(7749)
- Publication Year :
- 2018
-
Abstract
- Solid-state refrigeration technology based on caloric effects are promising to replace the currently used vapor compression cycles. However, their application is restricted due to limited performances of caloric materials. Here, we have identified colossal barocaloric effects (CBCEs) in a class of disordered solids called plastic crystals. The obtained entropy changes are about 380 J kg-1 K-1 in the representative neopentylglycol around room temperature. Inelastic neutron scattering reveals that the CBCEs in plastic crystals are attributed to the combination of the vast molecular orientational disorder, giant compressibility, and high anharmonic lattice dynamics. Our study establishes the microscopic scenario for CBCEs in plastic crystals and paves a new route to the next-generation solid-state refrigeration technology.<br />Comment: four figures and supplementary materials
- Subjects :
- Lattice dynamics
Condensed Matter - Materials Science
Multidisciplinary
Materials science
Condensed matter physics
Anharmonicity
Refrigeration
Materials Science (cond-mat.mtrl-sci)
FOS: Physical sciences
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Inelastic neutron scattering
0104 chemical sciences
Compressibility
Plastic crystal
Vapor-compression refrigeration
0210 nano-technology
Subjects
Details
- ISSN :
- 14764687
- Volume :
- 567
- Issue :
- 7749
- Database :
- OpenAIRE
- Journal :
- Nature
- Accession number :
- edsair.doi.dedup.....5ea421a9cd4caf6e62641c625f02f4ca