Metal-Insulator Transition in C60-Polymers

Abstract

Variations in the band structures of C60-polymers are studied, when pi-conjugation conditions are changed. We look at band structures in order to discuss a metal-insulator transition, using a semi-empirical model with the Su-Schrieffer-Heeger type electron-phonon interactions. We find that electronic structures change among direct-gap insulators and the metal, depending on the degree of pi-conjugations. High pressure experiments could observe such pressure-induced metal-insulator transitions.

References in corpus (2)

• Lattice distortion and energy level structures in doped C_{60} and C_{70} studied with the extended Su-Schrieffer-Heeger model: Polaron excitations and optical absorption
• Three-dimensional electronic instabilities in polymerized solid A1C60

Cited by in corpus (4)

• Adsorption structures and energetics of molecules on metal surfaces: Bridging experiment and theory
• Strongly-interacting model for antiferromagnetism in one-dimensional C60-polymers: A1C60
• Doping Effects and Electronic States in C60-Polymers
• Charge transfer excitons in optical absorption spectra of C60-dimers and polymers