[Pw_forum] Born effective charge

Paolo Giannozzi giannozz at democritos.it
Thu Apr 7 10:35:12 CEST 2011

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

Paolo Giannozzi, Dept of Chemistry&Physics&Environment,
Univ. Udine, via delle Scienze 208, 33100 Udine, Italy
Phone +39-0432-558216, fax +39-0432-558222

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