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Materialien/Werkstoffe Poster: Do., 13:00–15:30 D-P369
Study on Preparation and Structural Analysis of Yb0.6Sr0.4MnxFe1−xO3
Ihab Abdel-Latif 1 , Aisha Mostafa 2 , Vitaly Trounov 3 , Alex Kurbakov 3 , Elena
Tserkovna 3
1 Reactor Physics Dept., NRC, Atomic Energy Authority, Abou Zabaal – 2 ) Physics Division,
National Research Center, El-Dokky, Giza, Egypt – 3 Petersburg Nuclear Physics
Institute, Gatchina, 188350, Petersburg, Russia
The present work deals with studying the structure of Yb0.6Sr0.4MnxFe1−xO3 using
X-ray and neutron diffraction methods. This compounds were prepared using solid
state reaction from pure oxides (Yb2O3∼99.9 %, Fe2O3∼99.9 %, Mn2O3∼99.999 % and
SrO∼99.9 %). The sintering temperature was 1350 ◦ C for 30 h. The X-ray analysis
showed that all samples have a single phase structure: The samples of Manganese
concentration of x = 1 and 0.8 have a hexagonal structure of a space group P63cm
(185). The lattice constant values are a=b=6.0618, 6.0493 ˚A and c=11.3439, 11.3857
˚A, respectively. The structure changes from the hexagonal into orthorhombic for x=0.6
of Pnma (62) space group. The lattice parameters, (a, b, c) of x=0.6 sample, are 5.5725,
7.6576 and 5.4507 ˚A, respectively.