Difference between revisions of "D centred cell"
From Online Dictionary of Crystallography
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| + | <font color="blue">Maille centrée D</font> (''Fr''); <font color="black">Cella centrata D</font> (''It''); <font color="purple">D 複合単位胞</font> (''Ja''). | ||
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The '''D centred cell''' is the used for the rhombohedral description of the hexagonal lattice. Six right-handed ''D'' cell with basis vectors of equal length are obtained from the ''hP'' cell by means of one of the following transformation matrices: | The '''D centred cell''' is the used for the rhombohedral description of the hexagonal lattice. Six right-handed ''D'' cell with basis vectors of equal length are obtained from the ''hP'' cell by means of one of the following transformation matrices: | ||
Revision as of 11:09, 12 April 2016
Maille centrée D (Fr); Cella centrata D (It); D 複合単位胞 (Ja).
The D centred cell is the used for the rhombohedral description of the hexagonal lattice. Six right-handed D cell with basis vectors of equal length are obtained from the hP cell by means of one of the following transformation matrices:
D1: 10-1/01-1/111 D2: -101/0-11/111
the other four D cells are obtained by cyclic permutation of the basis vectors.
The resulting hD cell has centring nodes at 1/3,1/3,1/3 and 2/3,2/3,2/3
See also
- Centred lattices
- H centred cell
- Section 4.3.5.3 in the International Tables for Crystallography, Volume A
- Chapter 5 in the International Tables for Crystallography, Volume A