Speaker
Maxim Grauer
(Universität Leipzig)
Description
The synthetic $^{4}$L-(Pb)$_{4}$(Cu,Sb)$_{8}$(Pb,Sb)$_{8}$Se$_{24}$ crystallizes in the superspace group Cmc2$_{1}$(α00)000 with a = 4.165 Å, b = 14.085 Å, c = 19.82 Å and the modulation vector q = 0.6882(3) a*. The mixed Pb/Sb sites are coordinated octahedrally by the Se atoms, almost every third Pb/Sb position is replaced by Cu that prefers a tetrahedral coordination of Se atoms. This phenomenon can be described by a combination of a positional and occupational modulation.
Primary author
Maxim Grauer
(Universität Leipzig)
Co-authors
Mr
Lennart Staab
(Universität Leipzig)
Mrs
Katharina Ueltzen
(Universität Leipzig)
Dr
Christopher Benndorf
(Universität Leipzig)
Dr
Carsten Paulmann
(Universität Hamburg)
Prof.
Oliver Oeckler
(Universität Leipzig)
