Spinel Structure
Q: ZnFe2O4 is antiferromagnetic. Assuming that the zinc atoms of the garrison tetrahedral voids in the spinel structure, to propose a model that explains the antiferromagnetism zinc ferrite.
I consider that the question does conceptual model physical model.
A: ZnFe2O4 idealized spinel structure adopts the customary, A2 + [B3 + B3 +] O4 (see inverse spinels B3 + [A2 + B3 +] O4, eg, Fe [NiFe] O4), where the brackets indicate the octahedral sites.
The dxy, dxz, dy orbitals (ie the orbitals T2G) adjacent Fe3 + species are pointing at each...
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![An overview of the structure and magnetism of spinel ferrite nanoparticles and their synthesis in microemulsions [An article from: Chemical Engineering Journal]](/aimg/51CVCBGHB5L._SL160_.jpg)