-
讨论了SSH模型在一维有限系统上的稳定性,提出了几种稳定边界的办法,并对边界条件的作用进行了分析讨论The stabilities of one-dimensional conducting polymer chains with finte lengths have been studied in the frame work of the SSH tight-binding model.Three kinds of boundary conditions have been proposed to stabilize the dimerized structure of the chains.It was found that the natural boundary condition or the end-fixed boundary condition is applicable for getting a result to fit the observed photo-absorption of polyacetylene with short (N<20) lengths.
计量
- 文章访问数: 6062
- PDF下载量: 749
- 被引次数: 0