Magnetic Properties of Polymerized Fullerene Doped with Hydrogen, Fluorine and Oxygen

Abstract

We have presented recently a mechanism of ferromagnetism in polymeric fullerene phases based on spin and charge transfer from nonmagnetic donor or acceptor centers into fullerene molecules. In this work, the interaction between magnetic moments of the paramagnetic C₆₀ R radical adducts (R=H, F, OH) dispersed in the 2D polymeric network is examined by using UB3LYP hybrid density functional method at 3‐21G level. The results show that the interaction is ferromagnetic, strong and long‐range.

Keywords:

• Polymerized fullerenes
• carbon
• ferromagnetism
• dopants
• hydrogen
• fluorine
• oxygen
• ab initio calculations

Acknowledgments

The work is supported by the RFBR (Projects 03‐02‐17557, 05‐02‐17779), Swedish Research Council (VR), Royal Swedish Academy of Sciences (KVA), European FP6 project “Ferrocarbon.”