Journal of Applied Physics · 2006 · 117 citations · 11 references
Natural SciencesMaterials EngineeringMaterials ScienceMagnetic MaterialsMaterials ChemistryMaterials ThermodynamicsFerromagnetismMagnetic CharacterizationMagnetic Properties Of SolidsMagnetic SusceptibilityMagnetization ProcessesMagnetocaloric MaterialsEntropy ChangeEntropy Change In Magnetic MaterialsMagnetic EntropyMagnetic Entropy ChangeMagnetic RefrigerationMagnetic Refrigeration MaterialsMagnetocaloric EffectMechanical Alloying
Giant magnetocaloric effect was observed in Mn1.1Fe0.9P1−xGex (x=0.2, 0.24) melt-spun ribbons. The maximum magnetic entropy change ∣ΔSM∣ of Mn1.1Fe0.9P0.76Ge0.24 reaches 35.4J∕kgK in a field change from 0 to 5 T at around 317 K. This value is superior to that reported for Mn1.1Fe0.9P0.76Ge0.24 synthesized by mechanical alloying (∼30J∕kgK at 306 K). The large magnetocaloric effect results from a more homogenous element distribution related to the very high cooling rate during melt spinning. The excellent magnetocaloric effect properties, the low material cost, and the accelerated aging regime make the melt-spun-type MnFePGe materials an excellent candidate for magnetic refrigerant applications.
11
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
Giant magnetocaloric effect of MnAs1−xSbx
H. Wada, Y. Tanabe · Applied Physics Letters · 2001 · 1.4K citations