Journal Article10.1063/1.1323993
Magnetic entropy change in Fe-based compound LaFe10.6Si2.4
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TL;DR: A large magnetic entropy change has been observed in an intermetallic compound LaFe10.6Si2.4 as discussed by the authors, where the maximum −ΔSM≈3.2
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Abstract: A large magnetic entropy change has been observed in an intermetallic compound LaFe10.6Si2.4. The maximum −ΔSM≈3.2 J/kg K was found at its Curie temperature, ∼242 K, upon a 2 T magnetic field change. Although the entropy change is slightly smaller than that of pure Gd metal, such Fe-rich compounds still appear to be very attractive candidates since (a) the raw materials are much cheaper than pure Gd metal; (b) the Curie temperature can be easily shifted by tuning the composition; (c) the materials are much more chemically stable than pure Gd metal.
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Impact of CuO phase on magnetocaloric and magnetotransport properties of La 0.6 Ca 0.4 MnO 3 ceramic composites
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References
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TL;DR: An extremely large magnetic entropy change has been discovered in magnetic materials when subjected to a change in the magnetic field as mentioned in this paper, which exceeds the reversible magnetocaloric effect in any known magnetic material by at least a factor of 2.
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