[Pw_forum] Polarizability calculation

2016-05-02 Thread anne etindele
Dear allI am trying to determine the electric dipole polarizability of C60. Using Phonon, I got a single value, whereas whit TDDFPT the dipole polarizability for each value of the frequency is a 3*3 matrix. I would like to know if the tow calculations are equivalent. If there are, How can I move

[Pw_forum] polarizability calculation

2012-12-07 Thread Olga Sedelnikova
Dear Users, I'm interesting in calculation of static and dynamic electronic polarization properties. If I understood User's Guide correctly, there are two way: using ph.x (fpol) and vdw.x codes. Could you advice some papers with theoretical background of these implementation? Which is better m

[Pw_forum] polarizability calculation

2012-12-07 Thread Paolo Giannozzi
On Fri, 2012-12-07 at 11:45 +0700, Olga Sedelnikova wrote: > The other problem is connected with the example34. vdw.x is unmantained and longer distributed. P. -- Paolo Giannozzi, IOM-Democritos and University of Udine, Italy