摘要
利用Lanczos数值计算方法对spin-Peierls双链系统进行了研究.结果发现,链间KSEA相互作用在周期条件下总是制约系统的二聚化,因此它必会影响链内DM(η=1)相互作用对系统二聚化的贡献;在非周期条件下系统基态能量密度ε(δ)随着二聚化位移δ的增长是持续增加的,但是链间KSEA相互作用会制约这种增长.
The spin-Peierls ladder system is studied by Lanczos numerical method. The results show that interchain KSEA interaction always acts against systemic dimerization in periodic case. So it must influence the contribution of intrachain DM （η=1） interation on systemic dimerization, whereas in unperiodic case, systemic ground state energy density is always rising with theδrising, but the interchain KSEA interaction can restrict this rising.
出处
《山西大同大学学报（自然科学版）》
2010年第2期29-31,47,共4页
Journal of Shanxi Datong University(Natural Science Edition)
基金
安徽工业大学校青年自然科学基金[QZ200824]
