Rietveld Refinement of Nanocrystalline LiFeO<sub>2</sub> Synthesized by Sol-Gel Method and Its Structural and Magnetic Properties

Abstract

Nanocrystalline lithium iron oxide LiFeO<sub>2</sub> was synthesized using sol-gel method. Rietveld analysis was performed to confirm the different phases associated in the formation of LiFeO<sub>2</sub>. Quantitative Rietveld refinement revealed that sample contains: 39.9 wt% of cubic α – LiFeO<sub>2</sub> phase, 58.5 wt% of monoclinic β - LiFeO<sub>2</sub> and tetragonal 1.7 wt%. of γ - LiFeO<sub>2</sub>. The nanocrystalline nature of the prepared samples was confirmed by SEM analysis. The magnetic properties of LiFeO<sub>2</sub> showed ferromagnetic property at room temperature

Effect of Annealing Temperature on the Structural and Magnetic Properties of NiFe<sub>2</sub>O<sub>4</sub> Nanoferrites

“…grade citric acid (C 6 O) from SD fine chemicals were used as starting materials. The synthesis technique is described in detail elsewhere [11]. The obtained raw powders were annealed separately at different temperatures ranging from 500˚C, 600˚C, 700˚C, 800˚C, 900˚C and 1000˚C for 5 hours.…”

A Study of Lithium Ferrite and Vanadium-Doped Lithium Ferrite Nanoparticles Based on the Structural, Optical, and Magnetic Properties

“…According to quantitative Rietveld refinement, the sample comprises 39.9 wt% of cubic LiFeO 2 , 58.5 wt% of monoclinic LiFeO 2 , and 1.7 wt% of tetragonal LiFeO 2 . The particle size distribution is uneven, with an average particle size of 100 nm, as shown by the morphology [15]. At normal temperatures, LiFeO 2 powder exhibited spontaneous magnetism.…”