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k4 integer coordinates for lat_grid ?

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  • stevewaterman51
    Adrian, Vladimir Bulatov (on another list) recently suggested that... Let me add my interpretation of the k-4 crystal structure: It fits inside of cube with
    Message 1 of 2 , May 2, 2008
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      Adrian,

      Vladimir Bulatov (on another list) recently suggested that...

      Let me add my interpretation of the k-4 crystal structure:
      It fits inside of cube with edge 4

      8 points in corners [ 0 0 0 ] and equivalent [4,0,0], [0,4,0],
      [0,0,4], [4,4,0], [0,4,4], [4,0,4], [4,4,4],
      1 point in center [2 2 2]
      6 points on sides
      [3 3 0] and [3 3 4]
      [0 1 3] and [4 1 3]
      [1 0 1] and [1 4 1]
      3 points inside
      [ 3 2 3] [ 2 3 1] [1 1 2]

      Translations of this cell to vectors [4 k, 4 m, 4 n] where k, m, n -
      integers will give the whole structure.


      Could this k4 system be INTEGER coded then for lat_grid ?
      I wonder too about keeping the edges/struts as per the k4.

      steve
    • Adrian Rossiter
      Hi Steve ... Thanks. It shouldn t be any trouble to add this in. Adrian. -- Adrian Rossiter adrian@antiprism.com Home: http://antiprism.com/adrian
      Message 2 of 2 , May 20, 2008
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        Hi Steve

        On Fri, 2 May 2008, stevewaterman51 wrote:
        > Vladimir Bulatov (on another list) recently suggested that...
        ...
        > 8 points in corners [ 0 0 0 ] and equivalent [4,0,0], [0,4,0],
        > [0,0,4], [4,4,0], [0,4,4], [4,0,4], [4,4,4], .....

        Thanks. It shouldn't be any trouble to add this in.

        Adrian.
        --
        Adrian Rossiter
        adrian@...
        Home: http://antiprism.com/adrian
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