Open AccessPhase transition of atomic chain in the one-dimensional Frenkel-Kontorova model
Author(s) -
Han Xiu-Qin,
Hong Jiang,
Yu-Ren Shi,
Yanxiu Liu,
Jianhua Sun,
Jianmin Chen,
Duan Wen
Publication year - 2011
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.60.116801
Subject(s) - chain (unit) , phase (matter) , atom (system on chip) , phase transition , harmonic , motion (physics) , substrate (aquarium) , boundary (topology) , physics , atomic model , phase boundary , condensed matter physics , materials science , molecular physics , atomic physics , classical mechanics , quantum mechanics , mathematical analysis , oceanography , mathematics , geology , computer science , embedded system
The effect of the initial velocity of boundary atom on the motion of an atomic chain is studied by the one-dimensional Frenkel-Kontorova model. The obatined results show that the three phases could be observed in our simulation, these being harmonic phase when vv1, choatic phase when v1vv2 and uniformity phase when vv2. It is aslo shown that the two critical velocites(v1,v2) are strongly influenced by the number of atoms and the depth of the substrate potential.