High–pressure CdTe Structure: AB_oP2_25_b_a

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Prototype : CdTe
AFLOW prototype label : AB_oP2_25_b_a
Strukturbericht designation : None
Pearson symbol : oP2
Space group number : 25
Space group symbol : $\mbox{Pmm2}$
AFLOW prototype command : aflow --proto=AB_oP2_25_b_a
--params=
$a$,$b/a$,$c/a$,$z_{1}$,$z_{2}$


  • This is a high-pressure phase of CdTe. We use the data given for a pressure of 19.3 GPa.

Simple Orthorhombic primitive vectors:

\[ \begin{array}{ccc} \mathbf{a}_1 & = & a \, \mathbf{\hat{x}} \\ \mathbf{a}_2 & = & b \, \mathbf{\hat{y}} \\ \mathbf{a}_3 & = & c \, \mathbf{\hat{z}} \end{array} \]

Basis vectors:

\[ \begin{array}{ccccccc} & & \mbox{Lattice Coordinates} & & \mbox{Cartesian Coordinates} &\mbox{Wyckoff Position} & \mbox{Atom Type} \\ \mathbf{B}_{1} & =& z_{1} \, \mathbf{a}_{3}& =& z_{1} \, c \, \mathbf{\hat{z}}& \left(1a\right) & \mbox{Te} \\ \mathbf{B}_{2} & =& \frac12 \, \mathbf{a}_{2} + z_{2} \, \mathbf{a}_{3}& =& \frac12 \, b \, \mathbf{\hat{y}} + z_{2} \, c \, \mathbf{\hat{z}}& \left(1b\right) & \mbox{Cd} \\ \end{array} \]

References

Found in

  • P. Villars and L. Calvert, Pearson's Handbook of Crystallographic Data for Intermetallic Phases (ASM International, Materials Park, OH, 1991), 2nd edn., pp. 2816.

Geometry files


Prototype Generator

aflow --proto=AB_oP2_25_b_a --params=

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