Since the stoichiometry of the salt is 2:1, we must fill all of the tetrahedral holes (the FCC structure gives four selenides, thus we need eight lithiums). will occupy the latice points that define ...

would detect gravitational waves via four satellites that form a tetrahedral structure in space. Backers of the conceptual plan say TEGO offers significant advantages over designs consisting of a ...

In the zinc blend structure the sulphur ions form an fcc structure and the zinc ions occupy half of the tetrahedral sites in this structure to attain charge neutrality. The crystal has a lattice ...

The structure has face-centered cubic symmetry, and is a little heavy to understand. The general formula is AB 2 O 4. The oxygens form an fcc lattice. The A cations occupy tetrahedral holes, and the B ...