FCC

[vahidehnodehi]

Dear Steven

Considering angle -dependence bandstructure problem, I read the section you suggested ,"(See the section on refraction in chapter 10 of http://ab-initio.mit.edu/book/)". To simply the problem, I have considered an specific direction ( like an incident light at specific (Tetha , Phi)). I chose Gamma-W direction and sweep k-point along a plane in this direction inside the BZ. After obtaining the eignfrequencies (w), I have applied the condition

K_||= nw*sin(tetha)/c

K_|| is the horizontal component of k vectors which have been sweeped on the palne inside the BZ. Is the approach correct ?
But I did not get the result yet. I am not sure what point I am missing.

Cheers