Insulating State and Breakdown of Fermi Liquid Description in Molecular-Scale Single-Crystalline Wires of Gold

被引：35

作者：

Chandni, U. ^{[2
]}

Kundu, Paromita ^{[1
]}

Singh, Abhishek K. ^{[1
]}

Ravishankar, N. ^{[1
]}

Ghosh, Arindam ^{[2
]}

机构：

[1] Indian Inst Sci, Mat Res Ctr, Bangalore 560012, Karnataka, India

[2] Indian Inst Sci, Dept Phys, Bangalore 560012, Karnataka, India

来源：

ACS NANO | 2011年 / 5卷 / 10期

关键词：

Luttinger liquid; one-dimensional transport; gold nanowires; oriented attachment process; Fermi liquid; ULTRATHIN; CONDUCTANCE; TRANSPORT; NANOWIRES;

D O I：

10.1021/nn2031935

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Electrical transport measurements on ultrathin single-crystalline Au nanowires, synthesized via a wet chemical route, show an unexpected insulating behavior. The linear response electrical resistance exhibits a power-law dependence on temperature. In addition, the variation of current over a wide range of temperature and voltage obeys a universal scaling relation that provides compelling evidence for a non-Fermi liquid behavior. Our results demonstrate that the quantum ground state In ultrathin nanowires of simple metallic systems can be radically different from their bulk counterparts and can be described In terms of a Tomonaga-Luttinger liquid (TLL), in the presence of remarkably strong electron-electron interactions.

引用

页码：8398 / 8403

页数：6

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