Abstract
It is shown that, for a new class of polymers, ferromagnetic superexchange may arise. The model polymers of the new class have specific electronic structure. In addition to the delocalized system of coupled π electrons, these polymers have singly occupied molecular orbitals localized within each monomer unit. The localized electrons are indirectly exchange coupled, mediated via delocalized orbitals. The resultant exchange interaction is ferromagnetically signed. It depends strongly on the energy gap of the delocalized π-electron system. The suggested model is close to the superexchange of some rare earth magnetics where magnetic f electrons interact indirectly due to delocalized s electron system. The theory of Ruderman, Kittel, Kasuya and Yosida is used in the quantitative treatment of the exchange interaction.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
