[Pw_forum] [EXTERNAL] Biaxial Strian Silicon

Paolo Giannozzi paolo.giannozzi at uniud.it
Tue Aug 19 16:10:32 CEST 2014

On Thu, 2014-08-14 at 23:42 +0000, Zimmerman, Jonathan A wrote:

>         it’s odd that a few of your CELL_PARAMETERS values are negative.
>         I’m not sure what that’s supposed to mean.

the three primitive vectors defining the lattice may have negative
cartesian components. Nothing is odd here


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

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