[Pw_forum] Hexagonal lattice equivalent of fcc(rocksalt-like) phase change Ge2Sb2Te5 (GST)

[henry odhiambo]

Hello everyone,
 
The face-centered-cubic (fcc) structure of the phase-change material Ge2Sb2Te5 (GST) can be approximated by an equivalent hexagonal structure. May somebody assist me with or direct me to where I can find the atomic coordinates for this equivalent hexagonal structure for GST.
 
Regards,
Henry Otunga.
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