Applied Physics Letters · 2007 · 42 citations · 16 references
Natural SciencesMaterials SciencePhysicsCondensed Matter PhysicsMagnetic MaterialsPhase TransformationsAntiferromagnetic MaterialsAntiferromagnetismMagnetic ThermodynamicsMagnetism Of Inorganic CompoundsMagnetization ProcessesMagnetocaloric MaterialsField-induced TransitionsMagnetic Field EffectsMagnetic Phase DiagramMagnetic Phase TransitionsMagnetic RefrigerationMagnetic Refrigeration MaterialsMagnetocaloric EffectMetamagnetic Transitions
The magnetic phase transition and magnetocaloric effect are investigated on ε-(Mn0.83Fe0.17)3.25Ge compound. A large positive magnetic entropy change ΔSM is observed, which is accompanied with a field-induced metamagnetic transition from a collinear to a triangular antiferromagnetic configuration in this antiferromagnetic compound. The maximum value of ΔSM is 11.6J∕kgK at 93K for a magnetic field change of 7T. The study on systems with antiferromagnetic phases may open an important field in searching new materials for magnetic refrigeration.
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