Novel structural motifs in clusters of dipolar spheres: Knots, links, and coils

被引：41

作者：

Miller, MA ^{[1
]}

Wales, DJ ^{[1
]}

机构：

[1] Univ Cambridge, Chem Lab, Cambridge CB2 1EW, England

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2005年 / 109卷 / 49期

关键词：

D O I：

10.1021/jp0549632

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We present the structures of putative global potential energy minima for clusters bound by the Stockmayer (Lennard-Jones plus point dipole) potential. A rich variety of structures is revealed as the cluster size and dipole strength are varied. Most remarkable are groups of closed-loop structures with the topology of knots and links. Despite the large number of possibilities, energetically optimal structures exhibit only a few such topologies.

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页码：23109 / 23112

页数：4

相关论文

共 16 条

[1]

Adams C. C., 2004, KNOT BOOK

[2] Direct observation of dipolar chains in iron ferrofluids by cryogenic electron microscopy [J].

Butter, K ;

Bomans, PHH ;

Frederik, PM ;

Vroege, GJ ;

Philipse, AP .

NATURE MATERIALS, 2003, 2 (02) :88-91

[3] GROUND-STATE CONFIGURATIONS OF MODEL MOLECULAR CLUSTERS [J].

CLARKE, AS ;

PATEY, GN .

JOURNAL OF CHEMICAL PHYSICS, 1994, 100 (03) :2213-2219

[4] Magic numbers and growth sequences of small face-centred-cubic and decahedral clusters [J].

Doye, JPK ;

Wales, DJ .

CHEMICAL PHYSICS LETTERS, 1995, 247 (4-6) :339-347

[5] Colloidal systems - Playing tricks with designer "atoms" [J].

Frenkel, D .

SCIENCE, 2002, 296 (5565) :65-66

[6] HECKE ALGEBRA REPRESENTATIONS OF BRAID-GROUPS AND LINK POLYNOMIALS [J].

JONES, VFR .

ANNALS OF MATHEMATICS, 1987, 126 (02) :335-388

[7] A POLYNOMIAL INVARIANT FOR KNOTS VIA VONNEUMANN-ALGEBRAS [J].

JONES, VFR .

BULLETIN OF THE AMERICAN MATHEMATICAL SOCIETY, 1985, 12 (01) :103-111

[8] GLOBAL ORIENTATIONAL ORDER IN MODEL POLAR CLUSTERS [J].

LAVENDER, HB ;

IYER, KA ;

SINGER, SJ .

JOURNAL OF CHEMICAL PHYSICS, 1994, 101 (09) :7856-7867

[9]

Millett KC., 1988, MATH MAG, V61, P3, DOI [10.1080/0025570X.1988.11977338, DOI 10.1080/0025570X.1988.11977338]

[10] Parameter space minimization methods: Applications to Lennard-Jones-dipole-dipole clusters [J].

Oppenheimer, CA ;

Curotto, E .

JOURNAL OF CHEMICAL PHYSICS, 2004, 121 (13) :6226-6239