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

• Published in: Russian journal of inorganic chemistry 2010, Vol.55 (10), p.1607-1610
• Main Authors: Sergazina, S. M., Kasenov, B. K., Mustafin, E. S., Sagintaeva, Zh. I., Davrenbekov, S. Zh, Akubaeva, M. A., Kasenova, Sh. B., Erkasov, R. Sh, Zhumadilov, E. K.
• Format: Article
• Language: English
• Subjects: Chemistry; Chemistry and Materials Science; Crystals; Density; Diffraction; Ferrites; Inorganic Chemistry; Physical Methods of Investigation; Synthesis; Unit cell; X-rays
• ISSN: 0036-0236; 1531-8613
• DOI: 10.1134/S0036023610100189

Ferrites of composition ErM I Fe 2 O 5 (M I = 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 ErLiFe 2 O 5 , a = 10.510 Å, c = 14.270 Å, V ∘= 1616.16 Å 3 , Z = 16, V subcell ∘ = 101.01 Å 3 , ρ x = 6.01 g/cm 3 , ρ pyc = 5.97 ± 0.04 g/cm 3 ; for ErNaFe 2 O 5 , a = 10.519 Å, c = 15.510 Å, V ∘ = 1759.56 Å 3 , Z = 16, V subcell ∘ = 109.90 Å 3 , ρ x = 5.77 g/cm 3 , ρ pyc = 5.72 ± 0.08 g/cm 3 ; for ErKFe 2 O 5 , a = 11.050 Å, c = 15.480 Å, V ∘ = 1937.33 Å 3 , Z = 16, V subcell ∘ = 121.08 Å 3 , ρ x = 5.46 g/cm 3 , ρ pyc = 5.41 ± 0.04 g/cm 3 ; and for ErCsFe 2 O 5 , a = 10.78 Å, c = 16.01 Å, V ∘ = 1905.37 Å 3 , Z = 16, V subcell ∘ = 119.09 Å 3 , ρ x = 6.86 g/cm 3 , ρ pyc = 6.61 ± 0.01 g/cm 3 .