high symmetry points of diamond vs FCC
"#TEH LAY KUAN#" <[email protected]>
| Newsgroups | gmane.comp.science.photonic-bands |
|---|---|
| Message-ID | <412B3E8F88C449448A716B7876C4373B8F3DF3@MBox1.assoc.main.ntu.edu.sg> |
Hi, I am following the mpb tutorial on diamond (or FCC?). Would like to check whether is there any difference in the coordinates of the high symmetry points between a diamond lattice and a FCC lattice? Eg. for diamond lattice, L point is given as (0 0.5 0) in MPB tutorial; however, for FCC, L point is given as (0.5 0.5 0.5) from literature (Kittel Solid state Physics book). Understand that the Brillouin zones of diamond and FCC lattice are the same. Another question I have is the radius of the spheres used. In the MPB tutorial on diamond lattice, r is 0.25. So, if I were to compute the band diagram for an opal (FCC) structure, the radius r should be 0.25 or 0.35355 (i.e. sqrt2*0.25)? Appreciate your kind advice. Thanks in advance! Best regards, LayKuan _______________________________________________ mpb-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/mpb-discuss