Insulating state and breakdown of fermi liquid description in molecular-scale single-crystalline wires of gold

Chandni, U. ; Kundu, Paromita ; Singh, Abhishek K. ; Ravishankar, N. ; Ghosh, Arindam (2011) Insulating state and breakdown of fermi liquid description in molecular-scale single-crystalline wires of gold ACS Nano, 5 (10). pp. 8398-8403. ISSN 1936-0851

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Official URL: http://pubs.acs.org/doi/abs/10.1021/nn2031935

Related URL: http://dx.doi.org/10.1021/nn2031935

Abstract

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.

Item Type:Article
Source:Copyright of this article belongs to American Chemical Society.
Keywords:Fermi Liquid; Gold Nanowires; Luttinger Liquid; One-dimensional Transport; Oriented Attachment Process
ID Code:101541
Deposited On:01 Feb 2018 10:06
Last Modified:01 Feb 2018 10:06

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