On Aug 8, 2008, at 18:41 , S. K. S. wrote: > Only for Gamma point phonon one can use "Frozen > phonon" method because it is much faster.
not true in general. Each linear-response calculation costs approx. as much as a self-consistent one, and you need at least as many scf calculations as linear-response calculations Paolo --- Paolo Giannozzi, Dept of Physics, University of Udine via delle Scienze 208, 33100 Udine, Italy Phone +39-0432-558216, fax +39-0432-558222
