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应用我们自己在分子轨道图形理论基础上建立起来的合重复单元共轭分子本征方程约化定理，研究聚乙炔在掺杂前后能带结构的变化情况，可以很自然地得到Ｐｅｉｅｒｌｓ相变的结果，揭示了聚乙炔掺杂后从绝缘体到金属态变化过程的内在机理。
Applying the reductive theorem of the intrinsic equation of the conjugate molecule of the conjugate molecule established by ourselves based on the molecular orbital graph theory, the change of the band structure of the polyacetylene before and after doping can be obtained and the result of the Peierls phase transition can be naturally obtained , Reveals the intrinsic mechanism of polyacetylene doping from insulator to metal state.