Here is a lattice file for the Kagome lattice:
<LATTICES>
<LATTICE name="triangular lattice" dimension="2"> <BASIS><VECTOR>1 0</VECTOR><VECTOR>0.5 0.86602540378443864676</ VECTOR></BASIS> </LATTICE>
<UNITCELL name="Kagome" dimension="2"> <VERTEX><COORDINATE>0 0</COORDINATE></VERTEX> <VERTEX><COORDINATE>0.5 0</COORDINATE></VERTEX> <VERTEX><COORDINATE>0 0.5</COORDINATE></VERTEX>
<EDGE><SOURCE vertex="1"/><TARGET vertex="2"/></EDGE> <EDGE><SOURCE vertex="1"/><TARGET vertex="3"/></EDGE> <EDGE><SOURCE vertex="2"/><TARGET vertex="3"/></EDGE> <EDGE><SOURCE vertex="1"/><TARGET vertex="2" offset="-1 0"/></EDGE> <EDGE><SOURCE vertex="2"/><TARGET vertex="3" offset="1 -1"/></EDGE> <EDGE><SOURCE vertex="1"/><TARGET vertex="3" offset="0 -1"/></EDGE> </UNITCELL>
<LATTICEGRAPH name = "Kagome lattice"> <FINITELATTICE> <LATTICE ref="triangular lattice"/> <PARAMETER name="W" default="L"/> <EXTENT dimension="1" size="L"/> <EXTENT dimension="2" size="W"/> <BOUNDARY type="periodic"/> </FINITELATTICE> <UNITCELL ref="Kagome"/> </LATTICEGRAPH>
</LATTICES>
To visualize it please use the lattice viewer that I send in a separate mail and copy&paste above text into it
Matthias
On 26 Apr 2007, at 10:22, aniket@jncasr.ac.in wrote:
hi, I want to introduce kagome lattice. How can I do that? Please tell me in briefly. I have attached kagome lattice also. How can I check the generated lattice is kagome or not? That means I want to extract the coordinates of the lattice. I am waiting for reply. Regards,
aniket <kagome.pdf>