HoCoGa5 Structure: AB5C_tP7_123_b_ci_a
| Prototype | : | HoCoGa5 |
| AFLOW prototype label | : | AB5C_tP7_123_b_ci_a |
| Strukturbericht designation | : | None |
| Pearson symbol | : | tP7 |
| Space group number | : | 123 |
| Space group symbol | : | $\mbox{P4/mmm}$ |
| AFLOW prototype command | : | aflow --proto=AB5C_tP7_123_b_ci_a --params=$a,c/a,z_{4}$ |
Other compounds with this structure
- DyCoGa5, ErCoGa5, GdCoGa5, LuCoGa5, TbCoGa5, TmCoGa5, YCoGa5, CoIrIn5, CoRhIn5, LaCoIn5, LaIrIn5, LaRhIn5, PrCoIn5, PrIrIn5, and PrRhIn5
Simple Tetragonal primitive vectors:
\[
\begin{array}{ccc}
\mathbf{a}_1 & = & a \, \mathbf{\hat{x}} \\
\mathbf{a}_2 & = & a \, \mathbf{\hat{y}} \\
\mathbf{a}_3 & = & c \, \mathbf{\hat{z}}\\
\end{array}
\]
Basis vectors:
\[ \begin{array}{ccccccc} & & \mbox{Lattice Coordinates} & & \mbox{Cartesian Coordinates} &\mbox{Wyckoff Position} & \mbox{Atom Type} \\ \mathbf{B}_{1} & =&0 \, \mathbf{a}_{1} + 0 \, \mathbf{a}_{2} + 0 \, \mathbf{a}_{3} & =&0 \mathbf{\hat{x}} + 0 \mathbf{\hat{y}} + 0 \mathbf{\hat{z}} & \left(1a\right) & \mbox{Ho} \\ \mathbf{B}_{2} & =&\frac12 \, \mathbf{a}_{3}& =&\frac12 \, c \, \mathbf{\hat{z}}& \left(1b\right) & \mbox{Co} \\ \mathbf{B}_{3} & =&\frac12 \, \mathbf{a}_{1}+ \frac12 \, \mathbf{a}_{2}& =&\frac12 \, a \, \mathbf{\hat{x}}+ \frac12 \, a \, \mathbf{\hat{y}}& \left(1c\right) & \mbox{Ga I} \\ \mathbf{B}_{4} & =&\frac12 \, \mathbf{a}_{2}+ z_{4} \, \mathbf{a}_{3}& =&\frac12 \, a \, \mathbf{\hat{y}}+ z_{4} \, c \, \mathbf{\hat{z}}& \left(4i\right) & \mbox{Ga II} \\ \mathbf{B}_{5} & =&\frac12 \, \mathbf{a}_{1}+ z_{4} \, \mathbf{a}_{3}& =&\frac12 \, a \, \mathbf{\hat{x}}+ z_{4} \, c \, \mathbf{\hat{z}}& \left(4i\right) & \mbox{Ga II} \\ \mathbf{B}_{6} & =&\frac12 \, \mathbf{a}_{2}- z_{4} \, \mathbf{a}_{3}& =&\frac12 \, a \, \mathbf{\hat{y}}- z_{4} \, c \, \mathbf{\hat{z}}& \left(4i\right) & \mbox{Ga II} \\ \mathbf{B}_{7} & =&\frac12 \, \mathbf{a}_{1}- z_{4} \, \mathbf{a}_{3}& =&\frac12 \, a \, \mathbf{\hat{x}}- z_{4} \, c \, \mathbf{\hat{z}}& \left(4i\right) & \mbox{Ga II} \\ \end{array} \]References
- Y. Grin, Y. P. Yarmolyuk, and E. I. Gladyshevskii, Kristallicheskie struktury soedinenij R2COGa8 (R = Sm, Gd, Tb, Dy, Ho, Er, Tm, Lu, Y) i RCoGa5 (R = Gd, Tb, Dy, Ho, Er, Tm, Lu, Y), Kristallografiya 24, 242–246 (1979).
Found in
- P. Villars, Material Phases Data System ((MPDS), CH–6354 Vitznau, Switzerland, 2014). Accessed through the Springer Materials site.