Direct observation of transition from Tomonaga-Luttinger liquid states to superconductive phase in carbon nanotubes

被引：8

作者：

Matsudaira, M. ^{[1
]}

Haruyama, J. ^{[1
,2
]}

Murata, T. ^{[1
]}

Yagi, Y. ^{[2
]}

Einarsson, E. ^{[3
]}

Maruyama, S. ^{[3
]}

Sugai, T. ^{[2
,4
,5
]}

Shinohara, H. ^{[2
,4
,5
]}

机构：

[1] Aoyama Gakuin Univ, Dept Elect Engn & Elect, Kanagawa 2298558, Japan

[2] JST, CREST, Saitama 3320012, Japan

[3] Univ Tokyo, Dept Mech Engn, Bunkyo Ku, Tokyo 1138656, Japan

[4] Nagoya Univ, Dept Chem, Nagoya, Aichi 4648602, Japan

[5] Nagoya Univ, Inst Adv Res, Nagoya, Aichi 4648602, Japan

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2008年 / 40卷 / 07期

关键词：

carbon nanotube; superconductivity; Tomonaga-Luttinger liquids; electron-electron interaction;

D O I：

10.1016/j.physe.2007.12.005

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report the direct observation of the transition from the Tomonaga-Luttinger liquid (TLL) states to the superconductive (SC) phase in partially end-bonded multi-walled carbon nanotubes, in which the SC phase and the TLL states interplay. Two different transition behaviors are observed when the temperature decreases: (1) a drastic increase in the Luttinger parameter g toward g = 1 in the power laws on non-normalized differential conductance (dl/dv) vs. voltages and (2) a deviation from the TLL formula in the low voltage-energy region of normalized dl/dv vs. eV/kT. These findings shed light on understanding of one-dimensional electron correlations. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：2299 / 2304

页数：6

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