New manganites NdM3Sr3Mn4O12 and NdM3Ba3Mn4O12 (M = Li, Na, K): Synthesis and X-ray diffraction characteristics

Bulat Kunurovich Kasenov, Е. С. Мустафин, M. A. Akubaeva, S. T. Edil’baeva, Zhenisgul Imangalievna Sagintaeva, С. Ж. Давренбеков

2009

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DOI 10.1134/s0036023609030073

Data confidence 70 medium

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Abstract

Manganites NdM3Sr3Mn4O12 and NdM3Ba3Mn4O12 (M = Li, Na, K) were synthesized by a ceramic method from the corresponding oxides and carbonates. The X-ray diffraction analysis showed that all the compounds crystallized in the tetragonal crystal system with the following lattice parameters: NdLi3Sr3Mn4O12: a = 10.88 Å, c = 9.52 Å, V o = 1126.9 Å3, Z = 4, ρX = 4.95 g/cm3, ρpycn = 4.87 ± 0.05 g/cm3; NdNa3Sr3Mn4O12: a = 10.73 Å, c = 10.66 Å, V o = 1227.3 Å3, Z = 4, ρX = 4.80 g/cm3, ρpycn = 4.73 ± 0.07 g/cm3; NdK3Sr3Mn4O12: a = 10.87 Å, c = 11.71 Å, V o = 1382.6 Å3, Z = 4, ρX = 4.50 g/cm3, ρpycn = 4.43 ± 0.09 g/cm3; NdLi3Ba3Mn4O12: a = 10.97 Å, c = 10.34 Å, V o = 1244.3 Å3, Z = 4, ρX = 5.33 g/cm3, ρpycn = 5.23 ± 0.09 g/cm3; NdNa3Ba3Mn4O12: a = 10.99 Å, c = 11.15 Å, V o = 1346.7 Å3, Z = 4; ρX = 5.11 g/cm3, ρpycn = 5.05 ± 0.06 g/cm3; NdK3Ba3Mn4O12: a = 10.997 Å; c = 13.80 Å, V o = 1668.9 Å3, Z = 4, ρX = 4.32 g/cm3, ρpycn = 4.26 ± 0.07 g/cm3.