教師資料查詢 | 類別: 期刊論文 | 教師: 曾文哲 Tzeng,Wen-jer (瀏覽個人網頁)

標題:Exactly solved Frenkel-Kontorova model with multiple subwells
學年91
學期1
出版(發表)日期2002/11/01
作品名稱Exactly solved Frenkel-Kontorova model with multiple subwells
作品名稱(其他語言)
著者Lee, Shih-Chang ; Tzeng, Wen-Jer
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 B (Condensed Matter and Materials Physics) 66(18), 184108(22pages)
摘要We exactly solve a class of Frenkel-Kontorova models with a periodic potential composed of piecewise convex parabolas having the same curvature. All rotationally ordered stable configurations can be depicted with appropriate phase parameters. The elements of a phase parameter are grouped into subcommensurate clusters. Phase transitions, manifested in the gap structure changes previously seen in numerical simulations, correspond to the splitting and merging of subcommensurate clusters with the appearance of incommensurate nonrecurrent rotationally ordered stable configurations. Through the notion of elementary phase shifts, all the possibilities for the existence of configurations degenerate with the ground state are scrutinized and the domains of stability in the phase diagram are characterized. At the boundaries of a domain of stability, nonrecurrent minimum energy configurations are degenerate with the ground state configurations and phase transitions occur.
關鍵字analytic method;cluster analysis;model;phase transition;simulation;solvation;structure analysis
語言英文
ISSN1098-0121
期刊性質國外
收錄於SCI
產學合作
通訊作者Tzeng, Wen-Jer
審稿制度
國別美國
公開徵稿
出版型式紙本
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