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Inverse magnetocaloric effect in ferromagnetic Ni–Mn–Sn alloys
Open accessAbstract
The magnetocaloric effect (MCE) in paramagnetic materials has been widely used for attaining very low temperatures by applying a magnetic field isothermally and removing it adiabatically. The effect can also be exploited for room-temperature refrigeration by using giant MCE materials1,2,3. Here we report on an inverse situation in Ni–Mn–Sn alloys, whereby applying a magnetic field adiabatically, rather than removing it, causes the sample to cool. This has been known to occur in some intermetallic compounds, for which a moderate entropy increase can be induced when a field is applied, thus giving rise to an inverse magnetocaloric effect4,5. However, the entropy change found for some ferromagnetic Ni–Mn–Sn alloys is just as large as that reported for giant MCE materials, but with opposite sign. The giant inverse MCE has its origin in a martensitic phase transformation that modifies the magnetic exchange interactions through the change in the lattice parameters.
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Cited by
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Liu, Y., Scott, J. F., & Dkhil, B. (2016) · Applied Physics Reviews · doi:10.1063/1.4958327 · Cited by 319
Role of conduction electrons in mediating exchange interactions in Mn-based Heusler alloys
Şaşıoğlu, E., Sandratskii, L. M., & Bruno, P. (2008) · Physical Review B · doi:10.1103/physrevb.77.064417 · Cited by 219
Single-Crystal Growth and Room-Temperature Magnetocaloric Effect of X-Type Hexaferrite Sr2Co2Fe28O46
Wu, M., Zhou, X., Croft, M., Ehrlich, S., Khalid, S., Wen, W., Lapidus, S. H., Xu, X., Li, M.-R., Liu, Z., et al. (2020) · Inorganic Chemistry · doi:10.1021/acs.inorgchem.9b03724 · Cited by 23
Hanrahan, B., Espinal, Y., Liu, S., Zhang, Z., Khaligh, A., Smith, A., & Alpay, S. P. (2018) · Journal of Materials Chemistry C · doi:10.1039/c8tc02686f · Cited by 15
Metadata
- Authors
- Krenke, T., Duman, E., Acet, M., Wassermann, E. F., Moya, X., Mañosa, L., & Planes, A.
- Venue
- Nature Materials
- Published
- 2005-05-15
- Volume
- 4
- Issue
- 6
- Pages
- 450-454
- ISSN
- 1476-1122 (ISSN-L)
- 1476-4660
- OpenAlex
- W2069315691
- Cited by
- 1,987
- References
- 0
- FWCI
- 26.60
- Type
- journal article
- Language
- en
- Open access
- green
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- Krenke, T., Duman, E., Acet, M., Wassermann, E. F., Moya, X., Mañosa, L., & Planes, A. (2005). Inverse magnetocaloric effect in ferromagnetic Ni–Mn–Sn alloys. Nature Materials. https://doi.org/10.1038/nmat1395
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