QUASI-ONE-DIMENSIONAL ORGANIC UNSATURATED FERROMAGNETISM - SOME RIGOROUS RESULTS

Motivated by the recent experimental discovery of unsaturated ferromag netism in some organic polymers, such as poly-BIPO, we study a class o f quasi-one-dimensional organic polymeric chains. Describing these cha ins by a generalized Hubbard model, we rigorously show that the global ground state of this model has the ferrimagnetic long-range ordering.