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Imaging electronic structure of carbon nanotubes by voltage-contrast scanning electron microscopy

Vijayaraghavan, Aravind and Blatt, Sabine and Marquardt, Christoph and Dehm, Simone and Wahi, Raghav and Hennrich, Frank and Krupke, Ralph (2008):
Imaging electronic structure of carbon nanotubes by voltage-contrast scanning electron microscopy.
In: Nano Research, 1 (4), pp. 321-332, ISSN 1998-0124,
[Online-Edition: http://dx.doi.org/10.1007/s12274-008-8034-3],
[Article]

Abstract

We review recent progress in the measurement and understanding of the electrical properties of individual metal and semiconducting single-wall carbon nanotubes. The fundamental scattering mechanisms governing the electrical transport in nanotubes are discussed, along with the properties of p–n and Schottky-barrier junctions in semiconductor tubes. The use of advanced nanotube devices for electronic, high-frequency, and electromechanical applications is discussed. We then examine quantum transport in carbon nanotubes, including the observation of quantized conductance, proximity-induced supercurrents, and spin-dependent ballistic transport. We move on to explore the properties of single and coupled carbon-nanotube quantum dots. Spin and orbital (isospin) magnetic moments lead to fourfold shell structure and unusual Kondo phenomena. We conclude with a discussion of unanswered questions and a look to future research directions.

Item Type: Article
Erschienen: 2008
Creators: Vijayaraghavan, Aravind and Blatt, Sabine and Marquardt, Christoph and Dehm, Simone and Wahi, Raghav and Hennrich, Frank and Krupke, Ralph
Title: Imaging electronic structure of carbon nanotubes by voltage-contrast scanning electron microscopy
Language: English
Abstract:

We review recent progress in the measurement and understanding of the electrical properties of individual metal and semiconducting single-wall carbon nanotubes. The fundamental scattering mechanisms governing the electrical transport in nanotubes are discussed, along with the properties of p–n and Schottky-barrier junctions in semiconductor tubes. The use of advanced nanotube devices for electronic, high-frequency, and electromechanical applications is discussed. We then examine quantum transport in carbon nanotubes, including the observation of quantized conductance, proximity-induced supercurrents, and spin-dependent ballistic transport. We move on to explore the properties of single and coupled carbon-nanotube quantum dots. Spin and orbital (isospin) magnetic moments lead to fourfold shell structure and unusual Kondo phenomena. We conclude with a discussion of unanswered questions and a look to future research directions.

Journal or Publication Title: Nano Research
Volume: 1
Number: 4
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Fachgebiet Molekulare Nanostrukturen
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 08 Nov 2011 12:38
Official URL: http://dx.doi.org/10.1007/s12274-008-8034-3
Identification Number: doi:10.1007/s12274-008-8034-3
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