Wyckoff positions

  • Thread starter tirrel
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  • #1
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Main Question or Discussion Point

Hello, maybe this is a silly question. I wanted to ask how to interpret the Wyckoff positions in the international table of crystallography (I am new to them). In particular, I see three coordinates (x,y,z). I wanted to be sure that these are the (normalized) coordinates with respect to the axes of the conventional unit cell given by the respective crystal class, usually called a, b,c.

Maybe it's trivial but I could not find the answer till now.

Thanks a lot,
Tirrel
 

Answers and Replies

  • #3
898
67
Yes, (xyz) are normalized to the lattice parameters. You can easily see that when you look at special, high symmetry Wyckoff positions that usually have coordinates like 1/2, 1/3 or 1/4.
 

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