Structures having a trigonal space group correspond to Pearson Symbols  hRn  and some  hPn . P 3  (#147) η AgZn (B b ) R 3  (#148) ...

Definition The  MAX phases  are layered, hexagonal carbides and nitrides have the general formula: M n+1 AX n , (MAX) where n = 1 to 3, M ...

We present here a site that allows us to create a crystal structure in CIF format. Procedure: 1- Click on the following link  h...

To show the  Brillouin zone   of any space group you click on the following link: http://www.cryst.ehu.es/cgi-bin/cryst/programs/nph-kv-li...

https://www.facebook.com/download/720464101382168/Chapter3.pdf  

The structures described below are particularly simple and important types. Most of them are cubic, and most of them have all their atoms i...