Interaction and Transport in Low-dimensional Carbon Nanostructures

Interaction and Transport in Low-dimensional Carbon Nanostructures

Author: Lingfeng M. Zhang

Publisher:

Published: 2010

Total Pages: 200

ISBN-13: 9781124187020

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Mono and bilayer graphene are novel carbon materials with many remarkable properties. Their electronic properties, including the basic band structure, can be tuned by electrostatic gating. Calculation of the effect of the gate requires solving self-consistent screening problem. An overview of the electronic properties of graphene system is given in Chapter 1. Chapter 2 illustrates the physics of Dirac fermion on the example of a graphene p-n junction. The results are shown to be essential for experimental verification of Klein tunneling in graphene. Chapter 3 discusses the effect of gating on bilayer graphene and how their signatures have been observed by the IR spectroscopy. Chapter 4 discusses the theory of semiclassical Landau quantization in bilayer subject to both electric and magnetic fields. This explains the role of the Berry phase, valley polarization.


Magnetotransport in Novel Low-dimensional Carbon Nanomaterials

Magnetotransport in Novel Low-dimensional Carbon Nanomaterials

Author: Dirk Obergfell

Publisher: VDM Publishing

Published: 2009

Total Pages: 208

ISBN-13: 9783838106007

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Several novel low-dimensional carbon nanomaterials, scilicet graphene mono- and bilayers, single-walled carbon nanotubes (SWNTs) and SWNTs filled with Dy@C82 endohedral metallofullerenes (metallofullerene peapods), were investigated by electrical magnetotransport measurements at low temperatures in external magnetic fields of different orientations. The highlights of this study are that for both SWNTs and metallofullerene peapods, significant negative magnetoresistance (approx. 8 to 14 %) could be observed for axially oriented magnetic fields in some of the samples, where this effect vanished for the perpendicular magnetic field orientation. Other nanotubes did not show this effect at all. We assign the clearly different magnetotransport of the nanotubes in the parallel magnetic field configuration to different chiralities. Moreover, height undulations of the differential conductance Coulomb blockade peaks of SWNTs accompanied by shifts of the respective peak positions along the gate voltage direction were observed. Great importance was attached to combining the magnetotransport measurements with further investigations as high-resolution TEM or AFM on the very same sample.


Magnetism in Carbon Nanostructures

Magnetism in Carbon Nanostructures

Author: Frank Hagelberg

Publisher: Cambridge University Press

Published: 2017-07-13

Total Pages: 435

ISBN-13: 110706984X

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A comprehensive survey of carbon nanostructure magnetism, emphasizing both the fundamental nature of the field and its groundbreaking nanotechnological applications.


Low-Dimensional Solids

Low-Dimensional Solids

Author: Duncan W. Bruce

Publisher: John Wiley & Sons

Published: 2011-03-29

Total Pages: 380

ISBN-13: 1119972930

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With physical properties that often may not be described by the transposition of physical laws from 3D space across to 2D or even 1D space, low-dimensional solids exhibit a high degree of anisotropy in the spatial distribution of their chemical bonds. This means that they can demonstrate new phenomena such as charge-density waves and can display nanoparticulate (0D), fibrous (1D) and lamellar (2D) morphologies. This text presents some of the most recent research into the synthesis and properties of these solids and covers: Metal Oxide Nanoparticles Inorganic Nanotubes and Nanowires Biomedical Applications of Layered Double Hydroxides Carbon Nanotubes and Related Structures Superconducting Borides Introducing topics such as novel layered superconductors, inorganic-DNA delivery systems and the chemistry and physics of inorganic nanotubes and nanosheets, this book discusses some of the most exciting concepts in this developing field. Additional volumes in the Inorganic Materials Book Series: Molecular Materials Functional Oxides Porous Materials Energy Materials All volumes are sold individually or as comprehensive 5 Volume Set.


Advances in Carbon Nanostructures

Advances in Carbon Nanostructures

Author: Adrián Silva

Publisher: BoD – Books on Demand

Published: 2016-10-05

Total Pages: 258

ISBN-13: 9535126423

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Carbon atoms have the amazing ability to bond in remarkable different manners that can assume distinct astonishing dimensional arrangements from which absolutely diverse and interesting nanostructured carbon materials are obtained. This book aims to cover the most recent advances in (i) Graphene and derivatives, including graphene-based magnetic composites, membranes, wafer devices, and nanofibers for several applications, as well as some particular properties, such as light emission from graphene; (ii) Carbon nanotubes heaters and fibers for reinforcement of cement and diamond-based thin films; and (iii) Nanofluids consisting of both graphene and carbon nanotubes, apart from reporting some important case studies dealing with carbon nanostructures and their use in sensors, coatings, or electromagnetic wave absorbers.


Low Dimensional Semiconductor Structures

Low Dimensional Semiconductor Structures

Author: Hilmi Ünlü

Publisher: Springer Science & Business Media

Published: 2012-09-14

Total Pages: 174

ISBN-13: 3642284248

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Starting with the first transistor in 1949, the world has experienced a technological revolution which has permeated most aspects of modern life, particularly over the last generation. Yet another such revolution looms up before us with the newly developed capability to control matter on the nanometer scale. A truly extraordinary research effort, by scientists, engineers, technologists of all disciplines, in nations large and small throughout the world, is directed and vigorously pressed to develop a full understanding of the properties of matter at the nanoscale and its possible applications, to bring to fruition the promise of nanostructures to introduce a new generation of electronic and optical devices. The physics of low dimensional semiconductor structures, including heterostructures, superlattices, quantum wells, wires and dots is reviewed and their modeling is discussed in detail. The truly exceptional material, Graphene, is reviewed; its functionalization and Van der Waals interactions are included here. Recent research on optical studies of quantum dots and on the physical properties of one-dimensional quantum wires is also reported. Chapters on fabrication of nanowire – based nanogap devices by the dielectrophoretic assembly approach. The broad spectrum of research reported here incorporates chapters on nanoengineering and nanophysics. In its presentation of tutorial chapters as well as advanced research on nanostructures, this book is ideally suited to meet the needs of newcomers to the field as well as experienced researchers interested in viewing colleagues’ recent advances.


One-Dimensional Metals

One-Dimensional Metals

Author: Siegmar Roth

Publisher: John Wiley & Sons

Published: 2015-10-26

Total Pages: 362

ISBN-13: 3527335579

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Festkörperphysik niedrigdimensionaler Systeme mit anisotropen Eigenschaften: Nicht nur für Fachleute wurde dieses Spezialgebiet mit viel versprechenden Anwendungen in der Entwicklung organischer Leiter, Halbleiter und Supraleiter hier aufbereitet. In der durchgängig aktualisierten zweiten Auflage finden sich alle wichtigen Erkenntnisse aus dem vergangenen Jahrzehnt. Eine gut verständliche Einführung, die Chemiker, Polymer- und Materialwissenschaftler gleichermaßen ansprechen wird.


Fundamentals of Low-Dimensional Carbon Nanomaterials: Volume 1284

Fundamentals of Low-Dimensional Carbon Nanomaterials: Volume 1284

Author: John J. Boeckl

Publisher: Cambridge University Press

Published: 2011-05-02

Total Pages: 0

ISBN-13: 9781605112619

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Symposium C, "Fundamentals of Low-Dimensional Carbon Nanomaterials," was held Nov. 29-Dec. 3 at the 2010 MRS Fall Meeting in Boston, Massachusetts. This resultant proceedings volume includes topics such as growth techniques for CNTs and graphene, structural characterization, novel properties, and interface & surface structures. Low-dimensional carbon nanostructures exhibit a rich structural diversity from zero-dimensional C60, one-dimensional carbon nanotubes (CNTs), and two-dimensional graphene and graphite oxides. These low-dimensional carbon nanostructures are at the forefront of materials science and provide a platform for understanding the growth mechanisms and properties of nanostructures in general. They exhibit novel properties with endless potential applications from high-speed electronics to high-performance composites. Although low-dimensional carbon nanomaterials have attracted great interest in the research community, the applications and commercialization of graphene and CNTs have, to date, not been as successful as anticipated. The need for significant improvements in material quality and structural uniformity exists.