Magic structures and quantum conductance of [110] silver nanowires

被引：68

作者：

Cheng, D

Kim, WY

Min, SK

Nautiyal, T

Kim, KS

机构：

[1] Pohang Univ Sci & Technol, Natl Creat Res Initiat Ctr Superfunct Mat, Dept Chem, Div Mol & Life Sci, Pohang 790784, South Korea

[2] Pohang Univ Sci & Technol, Dept Phys, Pohang, South Korea

[3] Indian Inst Technol Roorkee, Dept Phys, Roorkee 247667, Uttar Pradesh, India

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.96.096104

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the pathway of thinning process for transient [110] nanowires (NWs) of Ag. The result is in good agreement with experimental observations. An unambiguous identification of the structure of a NW requires at least two views along different directions. In the cases where two views of different NW structures are practically the same for very thin NWs which pose experimental difficulty due to small signal-to-noise ratio, our theoretical analysis helps distinguish these structures. On the basis of conductance (G) calculations vis-a-vis the structure of transient NWs, the puzzling experimental observation of fractionally quantized G values is explained by considering the existence of mixed structures for thin wires.

引用

页数：4

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