Effect of Interchain Coupling on Quantum Lattice Fluctuation and Fluctuation Induced Interchain Order Transition in Trans-polyacetylene  

作　　者：ZENG Shang-you RAO Xue-song WU Chang-qin SUN xin 曾上游;饶雪松;吴长勤;孙鑫(Department of Physics,Fudan University,Shanghai 200433)

机构地区：[1]Department of Physics,Fudan University,Shanghai 200433

出　　处：《Chinese Physics Letters》1997年第9期694-697,共4页中国物理快报（英文版）

基　　金：Supported by the Shanghai Qi-Ming-Xing Plan for Young Scientists;the National Natural Science Foundation of China under Grant No.19571012.

摘　　要：Based on the modified Su-Schrieffer-Heeger Harniltonian and by adding the interchain hopping term,we consider the effect of interchain coupling on quantum lattice fluctuation in trans-polyacetylene.It has been found that the interchain coupling does not always weaken quantum lattice fluctuation.After overcoming a barrier of 1 eV or so,the quantum lattice fluctuation can induce a transition of interchain order.The physical meaning of these features is discussed.

关 键 词：order. QUANTUM LATTICE 

分 类 号：O41[理学—理论物理]