1) SrTiO 3 is a cubic perovskite crystal. The detailed structure of the unit cell is shown below: Sr O Ti (a) Calculate the structure factor of miller planes [100], [111] and [220] in terms of atomic scattering factors such as fs, fπ or fo (3) (b) Use [001] as zone axis and draw the possible diffraction pattern of this material. Indicate the intensities by the size of the spots. (3) (c) Index the first eight diffraction spots from the center (4)
1) SrTiO 3 is a cubic perovskite crystal. The detailed structure of the unit cell is shown below: Sr O Ti (a) Calculate the structure factor of miller planes [100], [111] and [220] in terms of atomic scattering factors such as fs, fπ or fo (3) (b) Use [001] as zone axis and draw the possible diffraction pattern of this material. Indicate the intensities by the size of the spots. (3) (c) Index the first eight diffraction spots from the center (4)
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