Abstract
AbstractBased on a theoretical model proposed for quasi‐one‐dimensional organic polymer ferromagnets, the effects of electron‐electron interaction on the ferromagnetic state are studied. Allowing for full lattice relaxation, the system is optimized by a set of self‐consistent iterative equations. The results of the calculation indicate that larger on‐site electron‐electron repulsive interactions will make the ferromagnetic ground state of the system more stable. It is also found that the inter‐site electron‐electron interaction cause a charge density distribution along the main chain and consequently weakens the stability of the ferromagnetic ground state.
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