[Pw_forum] Bravais lattices & matrix of cell parameters

[Eric Germaneau]

Well, my question concern more the crystal class than the Bravais 
lattice actually.
I was just wondering what the matrix of the cell parameters looks like 
in a case of non triclinic cell.
I'm wondering how the fact that a=b for instance is "translated" in the 
matrix form of the cell parameters.
One may also have less than six degree of freedom.
Thank you,

              Eric.

On 02/28/2011 05:24 AM, Paolo Giannozzi wrote:
> On Feb 27, 2011, at 5:50 , Eric Germaneau wrote:
>
>> I'd like to know the relationships between the elements of the matrix
>> of cell parameters for each Bravais lattices.
> you would like to know...what exactly? 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
>
>
>
>
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/ --- Mahatma Gandhi ---

Dr. Éric Germaneau <mailto:germaneau at gucas.ac.cn>

College of Physical Sciences
Graduate University of ChineseAcademy of Sciences
Yuquan Road 19A
Beijing 100049
China

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