GeP (High–pressure, superconducting) Structure: AB_tI4_107_a_a
| Prototype | : | GeP |
| AFLOW prototype label | : | AB_tI4_107_a_a |
| Strukturbericht designation | : | None |
| Pearson symbol | : | tI4 |
| Space group number | : | 107 |
| Space group symbol | : | $I4mm$ |
| AFLOW prototype command | : | aflow --proto=AB_tI4_107_a_a --params=$a,c/a,z_{1},z_{2}$ |
Body-centered Tetragonal primitive vectors:
\[
\begin{array}{ccc}
\mathbf{a}_1 & = & - \frac12 \, a \, \mathbf{\hat{x}} + \frac12 \, a \, \mathbf{\hat{y}} + \frac12 \, c \, \mathbf{\hat{z}} \\
\mathbf{a}_2 & = & ~ \frac12 \, a \, \mathbf{\hat{x}} - \frac12 \, a \, \mathbf{\hat{y}} + \frac12 \, c \, \mathbf{\hat{z}} \\
\mathbf{a}_3 & = & ~ \frac12 \, a \, \mathbf{\hat{x}} + \frac12 \, a \, \mathbf{\hat{y}} - \frac12 \, c \, \mathbf{\hat{z}} \\
\end{array}
\]
Basis vectors:
\[ \begin{array}{ccccccc} & & \mbox{Lattice Coordinates} & & \mbox{Cartesian Coordinates} &\mbox{Wyckoff Position} & \mbox{Atom Type} \\ \mathbf{B}_{1} & = & z_{1} \, \mathbf{a}_{1} + z_{1} \, \mathbf{a}_{2} & = & z_{1}c \, \mathbf{\hat{z}} & \left(2a\right) & \mbox{Ge} \\ \mathbf{B}_{2} & = & z_{2} \, \mathbf{a}_{1} + z_{2} \, \mathbf{a}_{2} & = & z_{2}c \, \mathbf{\hat{z}} & \left(2a\right) & \mbox{P} \\ \end{array} \]References
- P. C. Donohue and H. S. Young, Synthesis, structure, and superconductivity of new high pressure phases in the systems Ge–P and Ge–As, J. Solid State Chem. 1, 143–149 (1970), doi:10.1016/0022-4596(70)90005-8.
Found in
- P. Villars and K. Cenzual, Pearson's Crystal Data – Crystal Structure Database for Inorganic Compounds, ASM International (2013).