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RESEARCH PRODUCT

Structure and magnetic properties of AgFeP2O7

Kateryna V. TerebilenkoAlexander A. KirichokVyacheslav N. BaumerMaksym SeredukPhilipp GütlichNikolay S. Slobodyanik

subject

Materials scienceCurie–Weiss lawMagnetic structureMagnetismCrystal structureCondensed Matter PhysicsElectronic Optical and Magnetic Materialslaw.inventionInorganic ChemistryCrystallographyOctahedronlawMaterials ChemistryCeramics and CompositesIron phosphatePhysical and Theoretical ChemistryCrystallizationSingle crystal

description

Abstract AgFeP2O7 has been synthesized by flux crystallization and characterized by single crystal and powder X-ray diffraction (sp. gr. P21/c, a=7.3298(2), b=7.9702(2), c=9.5653(2) A, β=111.842(1)°, V=518.68(2) A3) and FTIR-spectroscopy. The structure is composed of isolated iron octahedra and phosphate tetrahedra interconnected into 3D network with hexagonal channels, where silver counter-ions are located. The magnetic behavior of the compound approaches the Curie–Weiss equation with a Weiss constant θ=−165.9 K indicating strong antiferromagnetic interaction between iron(III) ions.

https://doi.org/10.1016/j.jssc.2010.03.042