Short linear atomic chains in copper nanowires

被引：32

作者：

Amorim, E. P. M.

da Silva, A. J. R.

Fazzio, A.

da Silva, E. Z.

机构：

[1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil

[2] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil

来源：

NANOTECHNOLOGY | 2007年 / 18卷 / 14期

关键词：

D O I：

10.1088/0957-4484/18/14/145701

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We have performed realistic molecular dynamics simulations of copper nanowires (NWs) under stress along some crystallographic directions until their rupture to help understand the properties of these NWs at an atomistic level. We compare the structural arrangement during the elongation with the dynamical evolution of copper NWs observed in high resolution transmission electron microscopy (HRTEM) experiments, and they are in good agreement. Finally, we report the formation of short linear atomic chains (LACs) before breaking that occurs in all cases indicating the possibility to use copper as metallic nanocontacts.

引用

收藏

页数：4

相关论文

共 21 条

[1]

AMORIM EPM, 2006, THESIS IFGW UNICAMP

[2] Chain formation of metal atoms [J].

Bahn, SR ;

Jacobsen, KW .

PHYSICAL REVIEW LETTERS, 2001, 87 (26) :266101-1

[3] Experimental realization of suspended atomic chains composed of different atomic species [J].

Bettini, J. ;

Sato, F. ;

Coura, P. Z. ;

Dantas, S. O. ;

Galvao, D. S. ;

Ugarte, D. .

NATURE NANOTECHNOLOGY, 2006, 1 (03) :182-185

[4] Theoretical study of the formation, evolution, and breaking of gold nanowires [J].

da Silva, EZ ;

Novaes, FD ;

da Silva, AJR ;

Fazzio, A .

PHYSICAL REVIEW B, 2004, 69 (11)

[5] How do gold nanowires break? [J].

da Silva, EZ ;

da Silva, AJR ;

Fazzio, A .

PHYSICAL REVIEW LETTERS, 2001, 87 (25) :256102-1

[6] Indication of unusual pentagonal structures in atomic-size Cu nanowires -: art. no. 126103 [J].

González, JC ;

Rodrigues, V ;

Bettini, J ;

Rego, LGC ;

Rocha, AR ;

Coura, PZ ;

Dantas, SO ;

Sato, F ;

Galvao, DS ;

Ugarte, D .

PHYSICAL REVIEW LETTERS, 2004, 93 (12) :126103-1

[7] NEW ONE-DIMENSIONAL CONDUCTORS - GRAPHITIC MICROTUBULES [J].

HAMADA, N ;

SAWADA, S ;

OSHIYAMA, A .

PHYSICAL REVIEW LETTERS, 1992, 68 (10) :1579-1581

[8] Synthesis and characterization of helical multi-shell gold nanowires [J].

Kondo, Y ;

Takayanagi, K .

SCIENCE, 2000, 289 (5479) :606-608

[9] Gold nanobridge stabilized by surface structure [J].

Kondo, Y ;

Takayanagi, K .

PHYSICAL REVIEW LETTERS, 1997, 79 (18) :3455-3458

[10] Reversible manipulations of room temperature mechanical and quantum transport properties in nanowire junctions [J].

Landman, U ;

Luedtke, WD ;

Salisbury, BE ;

Whetten, RL .

PHYSICAL REVIEW LETTERS, 1996, 77 (07) :1362-1365