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

M. Matsudaira; J. Haruyama; N. Murata; Y. Yagi; E. Einarsson; S. Maruyama; T. Sugai; H. Shinohara

doi:10.1016/j.physe.2007.12.005

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

M. Matsudaira
, J. Haruyama
, N. Murata
, Y. Yagi
, E. Einarsson
, S. Maruyama
, T. Sugai
, H. Shinohara

Department of Electrical Engineering

Aoyama Gakuin University
Japan Science and Technology Agency
The University of Tokyo
Nagoya University

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	2299-2304
Number of pages	6
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	40
Issue number	7
DOIs	https://doi.org/10.1016/j.physe.2007.12.005
State	Published - May 2008

Keywords

Carbon nanotube
Electron-electron interaction
Superconductivity
Tomonaga-Luttinger liquids

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10.1016/j.physe.2007.12.005

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

abstract = "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.",

keywords = "Carbon nanotube, Electron-electron interaction, Superconductivity, Tomonaga-Luttinger liquids",

author = "M. Matsudaira and J. Haruyama and N. Murata and Y. Yagi and E. Einarsson and S. Maruyama and T. Sugai and H. Shinohara",

year = "2008",

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doi = "10.1016/j.physe.2007.12.005",

language = "English",

volume = "40",

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T1 - Direct observation of transition from Tomonaga-Luttinger liquid states to superconductive phase in carbon nanotubes

AU - Matsudaira, M.

AU - Haruyama, J.

AU - Murata, N.

AU - Yagi, Y.

AU - Einarsson, E.

AU - Maruyama, S.

AU - Sugai, T.

AU - Shinohara, H.

PY - 2008/5

Y1 - 2008/5

N2 - 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.

AB - 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.

KW - Carbon nanotube

KW - Electron-electron interaction

KW - Superconductivity

KW - Tomonaga-Luttinger liquids

UR - https://www.scopus.com/pages/publications/43849088830

U2 - 10.1016/j.physe.2007.12.005

DO - 10.1016/j.physe.2007.12.005

M3 - Article

AN - SCOPUS:43849088830

SN - 1386-9477

VL - 40

SP - 2299

EP - 2304

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 7

ER -

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

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Keywords

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