discrepancy in using rectangular and triangular supercells

Xiankai Sun <[email protected]> Mon, 23 May 2011 18:30:32 -0400
Newsgroups gmane.comp.science.photonic-bands
Message-ID <[email protected]>



Dear Prof. Johnson and mpb friends,
I am new to the mpb programming. I found discrepancy of my output band diagrams by constructing a line defect in PhC slab structure based on rectangular and triangular lattice supercells.
The code using triangular lattice is based on modifying "line-defect.ctl" and "hole-slab.ctl". I would like to output band diagram along the defect direction (Gamma-K'). 
I am attaching my codes and the output band diagrams are via these links:
http://pantheon.yale.edu/~xs58/mpb/Graph1.jpg
http://pantheon.yale.edu/~xs58/mpb/Graph2.jpg
Can someone please help me identify the reason?
Thank you very much!
Sincerely,
-Xiankai

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w1_a440_r345_supercell-y5_rect.ctl (application/octet-stream, 4.2 KB) - not displayed
w1_a440_r345_supercell-y5_triang.ctl (application/octet-stream, 3.3 KB) - not displayed