Molecular dynamics study of the surface melting of iron clusters

被引：54

作者：

Ding, F ^{[1
]}

Bolton, K

Rosén, A

机构：

[1] Gothenburg Univ, Sch Phys & Engn Phys, S-41296 Gothenburg, Sweden

[2] Chalmers Univ Technol, S-41296 Gothenburg, Sweden

来源：

EUROPEAN PHYSICAL JOURNAL D | 2005年 / 34卷 / 1-3期

关键词：

D O I：

10.1140/epjd/e2005-00157-x

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Molecular dynamics simulations have been used to study the surface melting of iron clusters. It is found that, even when the temperature is several hundreds of Kelvin below the cluster melting point, the crystalline center of the cluster is surrounded by surface atoms that exhibit large amplitude diffusion from their original positions. This results in surface melting of the cluster.

引用

页码：275 / 277

页数：3

共 14 条

[1]

AMARILLAS AP, 1996, PHYS REV B, V54, P10362

[2] Large-area synthesis of carbon nanofibres at room temperature [J].

Boskovic, BO ;

Stolojan, V ;

Khan, RUA ;

Haq, S ;

Silva, SRP .

NATURE MATERIALS, 2002, 1 (03) :165-168

[3] Iron-carbide cluster thermal dynamics for catalyzed carbon nanotube growth [J].

Ding, F ;

Bolton, K ;

Rosén, A .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 2004, 22 (04) :1471-1476

[4] Structural and vibrational analysis of amorphous Au-55 clusters [J].

Garzon, IL ;

PosadaAmarillas, A .

PHYSICAL REVIEW B, 1996, 54 (16) :11796-11802

[5] Lowest energy structures of gold nanoclusters [J].

Garzon, IL ;

Michaelian, K ;

Beltran, MR ;

Posada-Amarillas, A ;

Ordejon, P ;

Artacho, E ;

Sanchez-Portal, D ;

Soler, JM .

PHYSICAL REVIEW LETTERS, 1998, 81 (08) :1600-1603

[6] LATTICE-RELAXATION AT A METAL-SURFACE [J].

GUPTA, RP .

PHYSICAL REVIEW B, 1981, 23 (12) :6265-6270

[7] Atomic-scale imaging of carbon nanofibre growth [J].

Helveg, S ;

López-Cartes, C ;

Sehested, J ;

Hansen, PL ;

Clausen, BS ;

Rostrup-Nielsen, JR ;

Abild-Pedersen, F ;

Norskov, JK .

NATURE, 2004, 427 (6973) :426-429

[8] Low-temperature growth of carbon nanotubes by plasma-enhanced chemical vapor deposition [J].

Hofmann, S ;

Ducati, C ;

Robertson, J ;

Kleinsorge, B .

APPLIED PHYSICS LETTERS, 2003, 83 (01) :135-137

[9]

Lindemann FA, 1910, PHYS Z, V11, P609

[10] Optical properties and ultrafast dynamics of metallic nanocrystals [J].

Link, S ;

Ei-Sayed, MA .

ANNUAL REVIEW OF PHYSICAL CHEMISTRY, 2003, 54 :331-366

← 1 2 →