Magnesiumchromite, MgCr2O4 , undergoes a structural transition from a cubic spinel structure @space group Fd3 ¯m, a58.32768(4) Å at 16 K# into a tetragonal distorted structure @space group I41 /amd, a55.89199(5) Å, c58.31677(8) Å at 10 K#, isotypic with Hausmannite, Mn3O4 . This phase transition is translationengleich and takes place very close or at the antiferromagnetic ordering temperature.
To download the article click on the link below:
0 Comments