Theory of Electronic Structures and Lattice Distortions in Polyacetylene and Itinerant Peierls Systems. II: Coulomb Interaction Dependences of the HF Ground State, Lattice Dimerization and 1Bu Excited State in Regular Trans-Polyacetylene
- 1 January 1983
- journal article
- Published by Oxford University Press (OUP) in Progress of Theoretical Physics
- Vol. 69 (1), 1-19
- https://doi.org/10.1143/ptp.69.1
Abstract
We study the Coulomb interaction dependences of the HF ground state, lattice dimerization and 1Bu excited state in regular trans-polyacetylene using the PPP hamiltonian model developed in a previous paper. The nature of the HF ground state is determined by the relative magnitudes of the on site and nearest neighbour parts and the screening of the longer range part of the effective Coulomb potential.Keywords
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