Advanced Materials · 1999 · 105 citations · 0 references
Natural SciencesChemistryMaterials ScienceCondensed Matter PhysicsMagnetic MaterialsMaterials ChemistryCurie TemperatureFerromagnetismMagnetic Properties Of SolidsMagnetism In SolidsMagnetism Of Inorganic CompoundsMetalsMagnetic HysteresisMagnetic Hysteresis AnalysisMagnetic Hysteresis ParametersMagnetic Materials CharacterizationMolecular MagnetismMolecular MagnetsPhase Transition TemperatureTemperature Dependence Of Thermal Properties
A spectacular increase in the coercive field with values as high as 1.7 Tesla has been observed in the family of layered molecular magnets A[MIIMIII(ox)3] for the FeIII/CrIII mixed metal alloys, where MII = Mn, Fe, Co, Ni, Cu; MIII = Cr, Fe; ox = oxalate; and A = organic or organometallic cation. In these novel molecular magnets, the transition temperature can be easily tuned by simply varying x, the FeIII/CrIII ratio. x was also found to affect the thermal dependence of the magnetic hysteresis for this series, particularly interesting behavior being observed in the iron (II) compounds having x close to 1.