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۱Synthesis and X–Ray Scattering Analysis of Complex Manganites and Ferrites
اطلاعات انتشار: World Applied Sciences Journal، بيست و يكم،شماره۷، ۲۰۱۳، سال
تعداد صفحات: ۴
Complex oxide phases of compositions BiBaMn O , BiSrFe O , BiVaFe O High–were synthesized 2 5,5 2 5,5 2 5,5 by high temperature solid state reaction. The structure of the manganite and ferrites, types of the crystal system, parameters of the unit cells, radiographic and pycnometric densities were identified by X–ray scattering for a first time: BiBaMn O –a=3,79, b=5,67, c=23,2 Å, V = 498,6 Å , Z=4, V = 7,24, V =7,23 g\cm , 2 5,5 un.cell. rad. picn 33 BiVaFeO –a=11,1 Å, V = 1382 Å, Z=8, V = 6,02, V =3,03 g\cm, BiSrFeO –a=11,1 Å, V = 1364 Å , 2 5,5 un.cell. rad picn. 2 5,5 un.cell. 3 3 3 Z=16, V = 9,66, V =9,60 g\cm. A comparative analysis of the interaction of the crystal lattice parameters with rad picn. 3 parameters of lattice of the initial oxides has been conducted.

۲X–Ray Scattering Analysis of Complex Manganites Bi2Me Mn4O10 (Me– Ca, Ba, Sr)
اطلاعات انتشار: World Applied Sciences Journal، بيست و دوم،شماره۱۳، ۲۰۱۳، سال
تعداد صفحات: ۴
Complex oxide phases of compositions Bi2CaMn4O10, Bi2SrMn4O10 and Bi2BaMn4O10were synthesized by high temperature solid state reaction. The structure of the manganites, types of the crystal lattices, parameters of the unit cells, radiographic and pycnometric densities were identified by X–ray scattering for a first time: Bi2CaMn4O10 – a=5,68, c=23,2 Å, Vun.cell= 748,2 Å , Z=2, rad = 4,52, picn =4,55 g\cm , Bi2SrMn4O10 – 3 3 a=7,56, b=8,56, c=5,72 Å, V un.cell.= 370,2 Å , Z=2, rad = 7,93, picn =7,98 \c , Bi2BaMn4O10– a=5,68, c=23,5 Å, 3 3 V un.cell = 757,8 Å , Z=4, rad = 7,16, picn =7,20 g\cm . Relationship between the crystalline lattice parameters of the 3 3 manganites with electron configuration Mn3+ ion has been identified as well as electrophysical properties of manganites at room temperature.
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