Common origin for surface reconstruction and the formation of chains of metal atoms

被引：249

作者：

Smit, RHM ^{[1
]}

Untiedt, C ^{[1
]}

Yanson, AI ^{[1
]}

van Ruitenbeek, JM ^{[1
]}

机构：

[1] Leiden Univ, Kamerlingh Onnes Lab, NL-2300 RA Leiden, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.87.266102

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

During the fracture of nanocontacts gold spontaneously forms freely suspended chains of atoms, which is not observed for the isoelectronic noble metals Ag and Cu. Au also differs from Ag and Cu in forming reconstructions at its low-index surfaces. Using mechanically controllable break junctions we show that all the 5d metals that show similar reconstructions (Ir, Pt, and Au) also form chains of atoms, while both properties are absent in the 4d neighbor elements (Rh, Pd, and Ag), indicating a common origin for these two phenomena. A competition between s and d bonding is proposed as an explanation.

引用

页码：266102 / 1

页数：4

共 29 条

[1] Chain formation of metal atoms
Bahn, SR
Jacobsen, KW
[J]. PHYSICAL REVIEW LETTERS, 2001, 87 (26) : 266101 - 1
[2] Evolution of conducting channels in metallic atomic contacts under elastic deformation
Cuevas, JC
Yeyati, AL
Martin-Rodero, A
Bollinger, GR
Untiedt, C
Agrait, N
[J]. PHYSICAL REVIEW LETTERS, 1998, 81 (14) : 2990 - 2993
[3] Microscopic origin of conducting channels in metallic atomic-size contacts
Cuevas, JC
Yeyati, AL
Martin-Rodero, A
[J]. PHYSICAL REVIEW LETTERS, 1998, 80 (05) : 1066 - 1069
[4] Electronic structure and dimerization of a single monatomic gold wire
De Maria, L
Springborg, M
[J]. CHEMICAL PHYSICS LETTERS, 2000, 323 (3-4) : 293 - 299
[5] Reconstructions of Ir(110) and (100): An ab initio study
Filippetti, A
Fiorentini, V
[J]. SURFACE SCIENCE, 1997, 377 (1-3) : 112 - 116
[6] FISHER MPA, 2001, MESOSCOPIC ELECT TRA
[7] Noncrystalline structures of ultrathin unsupported nanowires
Gulseren, O
Ercolessi, F
Tosatti, E
[J]. PHYSICAL REVIEW LETTERS, 1998, 80 (17) : 3775 - 3778
[8] Nanowire gold chains:: Formation mechanisms and conductance
Häkkinen, H
Barnett, RN
Scherbakov, AG
Landman, U
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (39): : 9063 - 9066
[9] Gold nanowires and their chemical modifications
Häkkinen, H
Barnett, RN
Landman, U
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (42): : 8814 - 8816
[10] JACOBSEN KW, 1988, SPRINGER SERIES SURF, V11, P118

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