6533b827fe1ef96bd1285a57

RESEARCH PRODUCT

Tuning the magnetic properties in the layered molecular based magnets A[FeIIRuxIIIM1−xIII(ox)3] (MIII=Cr or Fe; ox=oxalate; A=organic or organometallic cation)

José M. Martínez-agudoEugenio CoronadoCarlos J. Gómez-garcíaJosé Ramón Galán-mascarós

subject

Mechanical EngineeringInorganic chemistryMetals and AlloysCoercivityCondensed Matter PhysicsMagnetic hysteresisMagnetic susceptibilityOxalateElectronic Optical and Magnetic Materialschemistry.chemical_compoundCrystallographychemistryMechanics of MaterialsMagnetMaterials ChemistryMetalloceneChemical compositionSolid solution

description

Abstract The magnetic properties of the family of layered molecular magnets A[FeIIMIII(ox)3] (MIII=Cr, Fe, Ru; ox=oxalate; A+=[NBu4]+, [ CoCp 2 ∗ ] + ) are reported. In particular, a detailed magnetic study of the solid solutions FeII(RuIIICrIII) and FeII(RuIIIFeIII) has been undertaken. We show that in these magnets both, transition temperatures and coercive fields, can be easily tuned by changing the chemical composition of the material, i.e. the ratio RuIII/MIII (MIII=Cr, Fe) within the magnetic layers and the type of cation A+ inserted in between the layers. Coercive fields as high as 2.2 T have been reached in this way.

https://doi.org/10.1016/s0379-6779(01)00324-1