Synthesis and X-ray diffraction study of ferrites ErMIFe2O5 (MI = Li, Na, K, Cs)

Сергазина Самал Мубараковна, Bulat Kunurovich Kasenov, Е. С. Мустафин, Zhenisgul Imangalievna Sagintaeva, С. Ж. Давренбеков, M. A. Akubaeva, Rakhmetulla Erkasov, E. K. Zhumadilov

2010

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DOI 10.1134/s0036023610100189

Data confidence 70 medium

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Abstract

Ferrites of composition ErMIFe2O5 (MI = Li, Na, K, Cs) were synthesized by a solid-phase method. The structure of the ferrites was for the first time studied by X-ray powder diffraction. Crystal systems, unit cell parameters, and X-ray and pycnometric densities were determined. For ErLiFe2O5, a = 10.510 Å, c = 14.270 Å, V∘= 1616.16 Å3, Z = 16, V subcell ∘ = 101.01 Å3, ρx = 6.01 g/cm3, ρpyc = 5.97 ± 0.04 g/cm3; for ErNaFe2O5, a = 10.519 Å, c = 15.510 Å, V∘ = 1759.56 Å3, Z = 16, V subcell ∘ = 109.90 Å3, ρx = 5.77 g/cm3, ρpyc = 5.72 ± 0.08 g/cm3; for ErKFe2O5, a = 11.050 Å, c = 15.480 Å, V∘ = 1937.33 Å3, Z = 16, V subcell ∘ = 121.08 Å3, ρx = 5.46 g/cm3, ρpyc = 5.41 ± 0.04 g/cm3; and for ErCsFe2O5, a = 10.78 Å, c = 16.01 Å, V∘ = 1905.37 Å3, Z = 16, V subcell ∘ = 119.09 Å3, ρx = 6.86 g/cm3, ρpyc = 6.61 ± 0.01 g/cm3.