Applied Physics Letters · 2007 · 94 citations · 10 references
Natural SciencesMaterials EngineeringMaterials ScienceMagnetic MaterialsMaterials ThermodynamicsPhase TransformationsAntiferromagnetismFerromagnetic MaterialsFerromagnetismMagnetism Of Inorganic CompoundsMagnetocaloric MaterialsPhase TransitionsField-induced TransitionsMagnetic EntropyMagnetic Entropy ChangeMagnetic Field EffectsMagnetic RefrigerationMagnetocaloric EffectMetamagnetic TransitionsRelative Cooling Power
The study of magnetocaloric effect has been performed on polycrystalline Ho5Pd2 compound, which undergoes magnetic field-induced first order metamagnetic transition from antiferromagnetic to ferromagnetic state below antiferromagnetic transition temperature. A large magnetic entropy change associated with the field-induced metamagnetic transition has been observed over a wide temperature range. The evaluated value of relative cooling power is 6.32J∕cm3 for a magnetic field change of 5T, which is even larger than that for reported best known magnetic refrigerant materials irrespective of the temperature range.
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Transition-metal-based magnetic refrigerants for room-temperature applications
O. Tegus, E. Brück, K.H.J. Buschow et al. · Nature · 2002 · 2.6K citations
Natural Sciences, Materials Engineering, Materials Science +14