EVIDENCE FOR A KOSTERLITZ-THOULESS TRANSITION IN A SIMULATION OF CD4 ADSORBED ON MGO

被引:11
作者
ALAVI, A
机构
[1] Department of Chemistry, University of Cambridge, Cambridge CB2 1Ec, Lensfield Road
关键词
D O I
10.1103/PhysRevLett.64.2289
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A realistic model of a two-dimensional molecular crystal of methane adsorbed on MgO(100) has been studied by molecular dynamics. The low-temperature phase has quasi-long-range order in the molecular orientations, in which there proliferates a dilute gas of vortex-antivortex pairs. Finite-size scaling calculations indicate that an unbinding transition takes place.
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页码:2289 / 2292
页数:4
相关论文
共 11 条
[1]   GRAIN-BOUNDARY THEORY OF MELTING IN 2 DIMENSIONS [J].
CHUI, ST .
PHYSICAL REVIEW B, 1983, 28 (01) :178-194
[2]  
COULOMB JP, 1985, PHYS REV LETT, V34, P1536
[3]  
FRENKEL D, 1985, PHYS REV A, V31, P1176
[4]   RENORMALIZATION, VORTICES, AND SYMMETRY-BREAKING PERTURBATIONS IN 2-DIMENSIONAL PLANAR MODEL [J].
JOSE, JV ;
KADANOFF, LP ;
KIRKPATRICK, S ;
NELSON, DR .
PHYSICAL REVIEW B, 1977, 16 (03) :1217-1241
[5]   CRITICAL PROPERTIES OF 2-DIMENSIONAL XY-MODEL [J].
KOSTERLITZ, JM .
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1974, 7 (06) :1046-1060
[6]   ORDERING, METASTABILITY AND PHASE-TRANSITIONS IN 2 DIMENSIONAL SYSTEMS [J].
Kosterlitz, JM ;
Thouless, DJ .
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1973, 6 (07) :1181-1203
[7]   ABSENCE OF FERROMAGNETISM OR ANTIFERROMAGNETISM IN ONE- OR 2-DIMENSIONAL ISOTROPIC HEISENBERG MODELS [J].
MERMIN, ND ;
WAGNER, H .
PHYSICAL REVIEW LETTERS, 1966, 17 (22) :1133-&
[8]  
NELSON DR, 1983, PHASE TRANSITIONS CR, V7
[9]   LIQUID CRYSTALS IN 2 DIMENSIONS [J].
STRALEY, JP .
PHYSICAL REVIEW A-GENERAL PHYSICS, 1971, 4 (02) :675-&
[10]   MONTE-CARLO STUDY OF THE PLANAR SPIN MODEL [J].
TOBOCHNIK, J ;
CHESTER, GV .
PHYSICAL REVIEW B, 1979, 20 (09) :3761-3769