Dear Kajal, --- On Tue, 1/5/10, kajal jindal <kajalmh18 at gmail.com> wrote:
> how can I determine the value of internal parameter 'u',which > characterizes the length of the bond parallel to c-axis, in hexagonal > wurtzite structure .. It is quite simple: u = 0.25 + 1./3/(c/a)^2} Bests, Eyvaz. ------------------------------------------------------------------- Prof. Eyvaz Isaev, Theoretical Physics Department, Moscow State Institute of Steel & Alloys, Russia, Department of Physics, Chemistry, and Biology (IFM), Linkoping University, Sweden Condensed Matter Theory Group, Uppsala University, Sweden Eyvaz.Isaev at fysik.uu.se, isaev at ifm.liu.se, eyvaz_isaev at yahoo.com