[Wien] Why the antiferromagnetic structure of Cr is still cubic

[Abderrahmane Reggad]

Thanks Mr Khan Manuel for your contribution to enrich the subject of
geometrical frustration and magnetism .

After reading your contribution, I made the following remarks:

* you have said:In the case of NiO the magnetic order reduces the symmetry
to monoclinic, but what we know all is that the magnetic order reduces the
symmetry in NiO from cubic to rhombohedral.

* From theMAGNDATA database, It's mentionned that the magnetic unit cell is
cubic

*Lattice parameters of the magnetic unit cell:*
8.3500 8.3500 8.3500 90.0000 90.0000 90.0000

Whould you explain that

Best regards
Mr: A.Reggad
Laboratoire de Génie Physique
Université Ibn Khaldoun - Tiaret
Algerie
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