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Site Occupancies


The term "site occupancy" refers to the chemical content of a crystallographic site.

In an ideal structure, a site in the crystal might contain one specific chemical element per site, e.g., a copper (Cu) atom on site 1 and a zine (Zn) atom on site 2.

Sometimes, however, crystals show disordered crystals, and there might be a statistical probability of different atoms occupying the same sites. For example 50% Cu and 50% Zn on sites 1 and 2.

The site occupancy for both sites would then be written Cu 0.50 Zn 0.50.


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