Zincblende (ZnAs, $B3$) Structure: AB_cF8_216_a_c-001
| Prototype | SZn |
| AFLOW prototype label | AB_cF8_216_a_c-001 |
| Strukturbericht designation | $B3$ |
| Mineral name | zincblende |
| ICSD | 651457 |
| Pearson symbol | cF8 |
| Space group number | 216 |
| Space group symbol | $F\overline{4}3m$ |
| AFLOW prototype command |
aflow --proto=AB_cF8_216_a_c-001
--params=$a$ |
Other compounds with this structure
AgI, AlAs, AlP, AlSb, AsB, AsGa, AsIn, BN, BePo, BeS, BeSe, BeTe, $\beta$-CsSi, CdPo, CdS, CdSe, CdTe, CuI (marshite), FeN, GaP, GaSb, HgS, HgSe, HgTe, InP, InSb, $\beta$-MnS, $\beta$-MnSe, OZn, PoZn, SSn, SZn, TeZn, (Fe, Zn)S (sphalerite)
- This is the cubic analog of wurtzite ($B4$), i.e. the stacking of the ZnS dimers along the $<111>$ direction is ABCABC … This is also a two-component analog of diamond ($A4$), without the inversion symmetry in the middle of the bond.
- Zincblende may also be referred to as sphalerite.
\[ \begin{array}{ccc}
\mathbf{a_{1}}&=&\frac{1}{2}a \,\mathbf{\hat{y}}+\frac{1}{2}a \,\mathbf{\hat{z}}\\\mathbf{a_{2}}&=&\frac{1}{2}a \,\mathbf{\hat{x}}+\frac{1}{2}a \,\mathbf{\hat{z}}\\\mathbf{a_{3}}&=&\frac{1}{2}a \,\mathbf{\hat{x}}+\frac{1}{2}a \,\mathbf{\hat{y}}
\end{array}\]
Basis vectors
| Lattice coordinates | Cartesian coordinates | Wyckoff position | Atom type | |||
|---|---|---|---|---|---|---|
| $\mathbf{B_{1}}$ | = | $0$ | = | $0$ | (4a) | S I |
| $\mathbf{B_{2}}$ | = | $\frac{1}{4} \, \mathbf{a}_{1}+\frac{1}{4} \, \mathbf{a}_{2}+\frac{1}{4} \, \mathbf{a}_{3}$ | = | $\frac{1}{4}a \,\mathbf{\hat{x}}+\frac{1}{4}a \,\mathbf{\hat{y}}+\frac{1}{4}a \,\mathbf{\hat{z}}$ | (4c) | Zn I |
References
- B. J. Skinner, Unit-Cell Edges of Natural and Synthetic Sphalerites, Am. Mineral. 46, 1399–1411 (1961).
Found in
- R. T. Downs and M. Hall-Wallace, The American Mineralogist Crystal Structure Database, Am. Mineral. 88, 247–250 (2003).
Prototype Generator
aflow --proto=AB_cF8_216_a_c --params=$a$