Dear Paolo Giannozzi: Thank you very much for your correction:) I couldn't imagine the physical meaning of imaginary part. I hope I can understand it after reading the paper (PRB62,3735).
On Thu, Apr 7, 2011 at 4:35 PM, Paolo Giannozzi <giannozz at democritos.it>wrote: > > On Apr 7, 2011, at 9:40 , xirainbow wrote: > > > Based on the definition of Born effective charge, it is a "real > > symmetric matrix?. > > real, but not symmetric, in general > > P. > --- > Paolo Giannozzi, Dept of Chemistry&Physics&Environment, > Univ. Udine, via delle Scienze 208, 33100 Udine, Italy > Phone +39-0432-558216, fax +39-0432-558222 > > > > > _______________________________________________ > Pw_forum mailing list > Pw_forum at pwscf.org > http://www.democritos.it/mailman/listinfo/pw_forum > -- ____________________________________ Hui Wang School of physics, Fudan University, Shanghai, China -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.democritos.it/pipermail/pw_forum/attachments/20110407/f92b7977/attachment.htm
