On Monday 12 June 2006 19:43, Luke Thulin wrote: > What about non-metals. For example, how was the value of 6.255 > chosen for Si in example 5? the position of the highest valence band -- Paolo Giannozzi e-mail: giannozz at nest.sns.it Scuola Normale Superiore Phone: +39/050-509876, Fax:-563513 Piazza dei Cavalieri 7 I-56126 Pisa, Italy