Crystal Structures

Below are the unit cells for a number of crystals that we have studied using EXAFS. Some are given in stereo projection with an angle of -2 degrees. Cross your eyes slightly to view them in 3-D.


NSF support: DMR007186, DMR0301971

Cage Structures

Skutterudite
Clathrate - structure showing cages as solid polyhedra
Clathrate - transparent to show "guest" atoms inside cages
Clathrate Cage Structure - 20 atoms in smaller cage; 24 atoms in larger

Perovskites

Perovskite Structure
CaMnO3 (Norby Structure)
Double Layer Perovskite Structure
Bilayer Within the Double Layer Perovskite

Copper Sulfides

CuS
CuS double layer
Cu2S (Chalcocite)

Pyrochlores

Pyrochlore
Pyrochlore, A-site
A-site Details
Pyrochlore, B-site
B-site Details

Miscellaneous

YBCO
ZrW2O8 Structure - Corner-linked WO4 tetrahedra and ZrO6 octahedra