Tuning the morphology and magnetic properties of single-domain SrFe8Al4O19 particles prepared by a citrate auto-combustion method
Anastasia E. Sleptsova, Liudmila N. Alyabyeva, Evgeny A. Gorbachev, Ekaterina S. Kozlyakova, Maxim A. Karpov, Chen Xinming, Alexander V. Vasiliev, B. P. Gorshunov, A. S. Prokhorov, Pavel E. Kazin, Lev A. Trusov
Abstract
Single-domain particles of SrFe8Al4O19 were prepared by thermal treatment of porous products of citrate–nitrate autocombustion at 1200 °C, and the effect of synthesis time on the particle morphology and magnetic properties was estimated. The procedure allows one to obtain SrFe8Al4O19 particles with mean diameters of 100–460 nm and coercivity ranges from 14.5 to 18.4 kOe, while ferromagnetic resonance frequencies vary from 149 to 164 GHz.
Topics & Concepts
CoercivityChemistryMorphology (biology)CombustionFerromagnetismParticle sizeParticle (ecology)PorositySingle domainThermalThermal treatmentNuclear magnetic resonanceChemical engineeringAnalytical Chemistry (journal)Magnetic domainCondensed matter physicsComposite materialMagnetizationPhysical chemistryThermodynamicsChromatographyMaterials scienceMagnetic fieldOrganic chemistryBiologyGeneticsOceanographyPhysicsGeologyQuantum mechanicsEngineeringMagnetic Properties and Synthesis of FerritesMultiferroics and related materialsMagnetic properties of thin films