Tuning the morphology and magnetic properties of single-domain SrFe8Al4O19 particles prepared by citrate auto-combustion route
Anastasia E. Sleptsova, Liudmila N. Alyabyeva, Evgeny A. Gorbachev,, Ekaterina S. Kozlyakova, Maxim A. Karpov, Chen Xinming, Alexander V., Vasiliev, Boris P. Gorshunov, Anatoly S. Prokhorov, Pavel E. Kazin, Lev A., Trusov
TL;DR
This study investigates how synthesis time affects the morphology and magnetic properties of single-domain SrFe8Al4O19 particles produced via citrate auto-combustion, revealing tunable magnetic characteristics.
Contribution
It demonstrates a method to control particle size and magnetic properties of SrFe8Al4O19 through synthesis time in citrate auto-combustion.
Findings
Particle sizes ranged from 100 to 460 nm.
Coercivity varied from 14.5 to 18.4 kOe.
Resonance frequencies ranged from 149 to 164 GHz.
Abstract
Single-domain particles of SrFe8Al4O19 were prepared by thermal treatment at 1473 K of porous products of citrate-nitrate auto-combustion, and the influence of synthesis time on the particle morphology and magnetic properties was studied. The procedure allows to obtain SrFe8Al4O19 particles with mean diameters 100 - 460 nm, and their coercivity ranges from 14.5 to 18.4 kOe, while ferromagnetic resonance frequencies vary from 149 to 164 GHz.
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Taxonomy
TopicsMagnetic Properties and Synthesis of Ferrites · Iron oxide chemistry and applications · Characterization and Applications of Magnetic Nanoparticles