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- Insulator-to-metal transition driven by clustering of solitons in polyacetylene
- Universidade Estadual Paulista (UNESP)
- Universidade Estadual de Campinas (UNICAMP)
- It's believed that the simple Su-Schrieffer-Heeger Hamiltonian can not predict the insulator to metal transition of transpolyacetylene (t-PA). The soliton lattice configuration at a doping level y=6% still has a semiconductor gap. Disordered distributions of solitons close the gap, but the electronic states around the Fermi energy are localized. However, within the same framework, it is possible to show that a cluster of solitons can produce dramatic changes in the electronic structure, allowing an insulator-to-metal transition.
- Synthetic Metals, v. 85, n. 1-3, p. 1083-1084, 1997.
- Metal-insulator phase transitions
- Polyacetylene and derivatives
- Crystal lattices
- Electronic structure
- Energy gap
- Fermi level
- Phase transitions
- Semiconducting polymers
- Semiconductor doping
- Metal to insulator phase transition
- Soliton clustering
- Acesso restrito
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