Ground states of one-dimensional commensurate-incommensurate transition models with double-well interactions

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	Ground states of one-dimensional commensurate-incommensurate transition models with double-well interactions
	A. G. Xu; G. R. Wang; S. G. Chen; B. Hu
	1998
发表期刊	Physical Review B
ISSN	0163-1829
卷号	57 期号:5 页码:2771-2779
摘要	Multiwell interparticle potentials are proposed as a mechanism for the occurrence of modulated phases. This is examined through two models with double-well interactions. For these systems, the effective potential method is reviewed and a certain process of calculation is emphasized. To characterize the modulated phases, the winding number omega, and the rotation number Omega are redefined. The method to recover the chain of particles and calculate the value of omega is given. We find that the phase diagrams strongly relate to the period of the external potential D. For each model, there is a threshold value in D, which equals to the distance between the two minimum value points. Within different interval of D, the phase diagrams exhibit different behavior. The periodicity of the phase diagram and the difference between modulated phases with the same Omega are also discussed.
部门归属	ccast, world lab, beijing 100080, peoples r china. china acad engn phys, grad sch, beijing 100088, peoples r china. acad sinica, int ctr mat phys, shenyang 110015, peoples r china. inst appl phys & computat math, ctr nonlinear studies, beijing 100088, peoples r china. hong kong baptist univ, dept phys, hong kong, hong kong. hong kong baptist univ, ctr nonlinear & complex syst, hong kong, hong kong. univ houston, dept phys, houston, tx 77204 usa.;xu, ag (reprint author), ccast, world lab, pob 8730, beijing 100080, peoples r china
关键词	Frenkel-kontorova Model Devils Staircase Nonconvex Interactions Effective Potentials Critical-behavior Analyticity Breaking Systems Phases
URL	查看原文
WOS记录号	WOS:000071835100029
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/37834
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	A. G. Xu,G. R. Wang,S. G. Chen,et al. Ground states of one-dimensional commensurate-incommensurate transition models with double-well interactions[J]. Physical Review B,1998,57(5):2771-2779.
APA	A. G. Xu,G. R. Wang,S. G. Chen,&B. Hu.(1998).Ground states of one-dimensional commensurate-incommensurate transition models with double-well interactions.Physical Review B,57(5),2771-2779.
MLA	A. G. Xu,et al."Ground states of one-dimensional commensurate-incommensurate transition models with double-well interactions".Physical Review B 57.5(1998):2771-2779.