THE CHARGE-DENSITY WAVE INDUCED BY INTERCHAIN COUPLING IN π-CONJUGATED ORGANIC FERROMAGNETS

Abstract

Considering the itineracy of electrons, electron–phonon coupling, the Hubbard repulsion and interchain coupling, we deal with two neighboring-conjugated organic ferromagnetic chains with a numerical method. The interchain coupling is considered as an interchain electron-transfer term, which is different with respect to different sites in chains. The result shows that the interchain coupling can result in a charge-density wave (CDW) along the main chain and a spin-density transfer between the main chain and the side radicals.