Inverse barocaloric effect in the giant magnetocaloric La–Fe–Si–Co compound
- 1 September 2011
- journal article
- research article
- Published by Springer Science and Business Media LLC in Nature Communications
- Vol. 2 (1), 595
- https://doi.org/10.1038/ncomms1606
Abstract
Application of hydrostatic pressure under adiabatic conditions causes a change in temperature in any substance. This effect is known as the barocaloric effect and the vast majority of materials heat up when adiabatically squeezed, and they cool down when pressure is released (conventional barocaloric effect). There are, however, materials exhibiting an inverse barocaloric effect: they cool when pressure is applied, and they warm when it is released. Materials exhibiting the inverse barocaloric effect are rather uncommon. Here we report an inverse barocaloric effect in the intermetallic compound La-Fe-Co-Si, which is one of the most promising candidates for magnetic refrigeration through its giant magnetocaloric effect. We have found that application of a pressure of only 1 kbar causes a temperature change of about 1.5 K. This value is larger than the magnetocaloric effect in this compound for magnetic fields that are available with permanent magnets.This publication has 25 references indexed in Scilit:
- Theoretical aspects of the magnetocaloric effectPhysics Reports, 2010
- Thermal expansion, phase diagrams and barocaloric effects in (NH4)2NbOF5Journal of Physics: Condensed Matter, 2010
- Giant solid-state barocaloric effect in the Ni–Mn–In magnetic shape-memory alloyNature Materials, 2010
- Large Electrocaloric Effect in Ferroelectric Polymers Near Room TemperatureScience, 2008
- Barocaloric and magnetocaloric effects in La(Fe0.89Si0.11)13Journal of Applied Physics, 2008
- Elastocaloric Effect Associated with the Martensitic Transition in Shape-Memory AlloysPhysical Review Letters, 2008
- Giant Electrocaloric Effect in Thin-Film PbZr 0.95 Ti 0.05 O 3Science, 2006
- Inverse magnetocaloric effect in ferromagnetic Ni–Mn–Sn alloysNature Materials, 2005
- Transition-metal-based magnetic refrigerants for room-temperature applicationsNature, 2002
- Giant Magnetocaloric Effect inPhysical Review Letters, 1997