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Figure 3
Fourier map in the x3–x4 plane (modulated composite on the left, modulated-layer structure on the right) for O, showing the character of the atomic domains (heavy solid lines) along x4. The increment of the contour lines is 2 e Å−3. For the modulated-layer structure the Ni atom is drawn to demonstrate the substitution of an O3 triangle by one Ni atom in the [A3A′O6] layers.

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 62| Part 2| March 2006| Pages 197-204
doi:10.1107/S0108768105039212
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