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Here a cheaper alternative magnetic refrigeration material using MnCoGe 1−x Si x (x=0, 0.1, 0.3, and 0.5) alloys were investigated. The polycrystalline MnCoGe 1−x Si x alloys were prepared by arc-melting followed by annealing at 1123K for 72h. At a 0.5at% Si substitution, the Curie temperatures increased by 10% to 374K, the magnetic entropy change (|ΔS M |)...
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