Re: anisotrophy
Aaron Matthews <[email protected]>
| Newsgroups | gmane.comp.science.photonic-bands |
|---|---|
| Message-ID | <[email protected]> |
I have tried using the "Matlab's 'contour' function" approach to solve this problem but in every case when i compute the structure in MPB it corrects the lattice directions for a square lattice to the [100] and [010] directions rather than the [1/sqrt2 1/sqrt2 0] and [1/sqrt2 -1/sqrt2 0] i assign. I have even tried using a super cell with multiple rods but it still corrects the lattice. Is it possible to override MPB's correction of the lattice directions to visualise an effective 45-degree anisotrophy direction? Thanks Aaron Matthews Steven G. Johnson wrote: >On Fri, 4 May 2007, Aaron Matthews wrote: > > >>I am attempting to reproduce the anisotropic equifrequency surfaces from >>PRE 67,056607 (2003) figure 3. (b) using the below control file but all >>equifrequency contours i obtain are symmetric. Does anyone know why i am >>unable to observe the effect of anisotropy using find-k in this case. >> >> > >It's usually a lot easier to produce equifrequency contour plots by just >using the ordinary "run" to compute omega at a grid of k points, and then >plot it using Matlab's "contour" function or similar. > >_______________________________________________ >mpb-discuss mailing list >[email protected] >http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/mpb-discuss > > > -- Aaron Matthews Research scholar Nonlinear Physics Centre Research School of Physical Sciences and Engineering The Australian National University Canberra ACT 0200 Tel: +61-2-6125-8277 Fax: +61-2-6125-8588 Email:[email protected]