Journal
ADVANCED MATERIALS
Volume 31, Issue 37, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201903577
Keywords
barocaloric materials; environmentally friendly cooling; energy efficient
Categories
Funding
- MINECO project [FIS2017-82625-P]
- AGAUR [2017SGR-0042]
- Laboratorio Nacional de Investigaciones en Nanociencias y Nanotecnologia (LINAN)
- Division de Materiales Avanzados
- ERC [680032]
- PRODEP-SEP project [UACJ-PTC-383]
- CONACYT-SEP project [A1-S-37066]
- Royal Society
- European Research Council (ERC) [680032] Funding Source: European Research Council (ERC)
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Hydrostatic pressure represents an inexpensive and practical method of driving caloric effects in brittle magnetocaloric materials, which display first-order magnetostructural phase transitions whose large latent heats are traditionally accessed using applied magnetic fields. Here, moderate changes of hydrostatic pressure are used to drive giant and reversible inverse barocaloric effects near room temperature in the notoriously brittle magnetocaloric material MnCoGeB0.03. The barocaloric effects compare favorably with those observed in barocaloric materials that are magnetic. The inevitable fragmentation provides a large surface for heat exchange with pressure-transmitting media, permitting good access to barocaloric effects in cooling devices.
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