Electron microscopy
 
Atomic Number Contrast of Niobium (Nb)
- Practical Electron Microscopy and Database -
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In Figure 3094, the intensities of the Nb and Ni atom columns in [010] direction shows the -Ni-Nb-Nb- ordering in Ba3NiNb2O9 in P-3m1 (164) space group. Its lattice parameters are a = b = 5.7550(5) Å and c = 7.0656(2) Å.

HAADF Z-contrast of Ba3NiNb2O9

Figure 3094. HAADF intensities of the Nb and Ni atom columns in [010] direction showing the -Ni-Nb-Nb- ordering. Brightest contrast: Ba (Z=88); brighter contrast: Nb (Z = 73); weak contrast: Ni (Z=46). [1]

 

 

 

 

[1] Jungmin Hwang, Magnetoelectric and Multiferroic Properties in Layered 3d Transition Metal Oxides, thesis, 2012.

 

 

 

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