Morse-type Frenkel-Kontorova model
學年 86
學期 2
出版(發表)日期 1998-03-01
作品名稱 Morse-type Frenkel-Kontorova model
著者 Chou, Chung-I.; Ho, Choon-Lin; Hu, Bambi; Lee, Hsuan
單位 淡江大學物理學系
出版者 College Park: American Physical Society
著錄名稱、卷期、頁數 Physical Review E (Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics) 57(3), pp.2747-2756
摘要 We have investigated a generalized Frenkel-Kontorova model with a Morse-type potential which can change from a convex function to a nonconvex one as the nonlinearity parameter σ is reduced. For small enough σ, there appear in the phase diagram nonconvex phases in which at least one pair of atoms is influenced by the nonconvex part of the Morse potential. There are no incommensurate states in the nonconvex phases. For σ>0.35, a devil’s staircase along the critical points of the Aubry transitions of all incommensurate states can be constructed. We studied the universality of the Hausdorff dimension of the devil’s staircase, and of some critical exponents relevant to the Aubry transitions.
語言 en
ISSN 1063-651X
期刊性質 國外
收錄於 SCI
國別 USA
出版型式 紙本

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