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We systematically investigate the relationships between structural and electronic effects of finite size zigzag or armchair carbon nanotubes of various diameters and lengths, starting from a molecular template of varying shape and diameter,…

Interference effects in finite sections of one-dimensional moir\'e crystals are investigated using a Landauer-B\"uttiker formalism within the tight-binding approximation. We explain interlayer transport in double-wall carbon nanotubes and…

Mesoscale and Nanoscale Physics · Physics 2021-08-03 Nils Wittemeier , Matthieu J. Verstraete , Pablo Ordejón , Zeila Zanolli

We report on a numerical study of quantum diffusion over micron lengths in defect-free multi-walled nanotubes. The intershell coupling allows the electron spreading over several shells, and when their periodicities along the nanotube axis…

Materials Science · Physics 2007-05-23 Stephan Roche , Francois Triozon , Angel Rubio , D. Mayou

The structural, electronic, and magnetic properties of ultrathin Cu-coated Co nanowires have been studied by using empirical genetic algorithm simulations and a tight-binding $spd$ model Hamiltonian in the unrestricted Hartree-Hock…

Materials Science · Physics 2009-11-10 Baolin Wang , Xiaoshuang Chen , Guibin Chen , Guanghou Wang , Jijun Zhao

It is shown by the method of molecular dynamics using a chain model that a multilayer packaging of identical single-walled carbon nanotubes with a diameter of D>2.5 nm located on a flat substrate is a multistable system. The system has many…

Mesoscale and Nanoscale Physics · Physics 2022-03-14 Alexander V. Savin

Aggregation of carbon nanotubes dispersed in nematic liquid crystalline medium is discussed. A model is proposed, which assumes that the aggregates consist of a "skeleton" formed by stochastically arranged nanotubes and a "shell" ("coat")…

Mesoscale and Nanoscale Physics · Physics 2011-01-06 Longin N. Lisetski , Nikolai I. Lebovka , Sergei V. Naydenov , Marat S. Soskin

Extreme nanowires (ENs) represent the ultimate class of crystals: They are the smallest possible periodic materials. With atom-wide motifs repeated in one dimension (1D), they offer a privileged perspective into the Physics and Chemistry of…

The current miniaturization of electronic devices raises many questions about the properties of various materials at nanometre-scales. Recent molecular dynamics computer simulations have shown that small finite nanowires of gold exist as…

Materials Science · Physics 2007-05-23 G. Bilalbegovic

We propose a review of the current knowledge about the synthesis, magnetic properties and applications of magnetic cylindrical nanowires and nanotubes. By "nano" we consider diameters reasonably smaller than a micrometer. At this scale,…

Mesoscale and Nanoscale Physics · Physics 2018-12-19 Michal Stano , Olivier Fruchart

Carbon nanotubes are quasi-one-dimensional systems that possess superior transport, mechanical, optical, and chemical properties. In this work, we generalize the notion of disorder hyperuniformity, a recently discovered exotic state of…

Statistical Mechanics · Physics 2023-01-04 Duyu Chen , Yu Liu , Yu Zheng , Houlong Zhuang , Mohan Chen , Yang Jiao

The extraordinary one-dimensional properties of carbon nanotubes have captivated scientists and engineers since their discovery in the early 1990s. In particular, semiconducting single-wall carbon nanotubes (SWCNTs) are highly promising for…

Applied Physics · Physics 2026-04-09 Ting-Wei Chang , Gustavo M. Rodriguez-Barrios , Andrey Baydin , Junichiro Kono

The structure of multi-wall carbon nanotubes has been attributed previously to disordered stacking of the graphene planes.

The relative orientation (twist) of successive layers of stacked two-dimensional (2D) materials creates variations in the interlayer atomic registry. The variations often form a super lattice, called a moir\'e pattern, which can alter…

Mesoscale and Nanoscale Physics · Physics 2020-08-05 Stephen Carr , Daniel Massatt , Mitchell Luskin , Efthimios Kaxiras

We report the first experimental observation of strong coupling effect in one-dimensional moir\'e crystals. We study one-dimensional double-wall carbon nanotubes (DWCNTs) in which van der Waals-coupled two single nanotubes form…

Mesoscale and Nanoscale Physics · Physics 2020-04-29 Sihan Zhao , Pilkyung Moon , Yuhei Miyauchi , Kazunari Matsuda , Mikito Koshino , Ryo Kitaura

For the first time, an approach is suggested for the quantitative description of the electronic structure of single-walled carbon nanotubes and the prediction of active sites for the tube controlled functionalization in view of the tube…

Materials Science · Physics 2007-09-24 Elena F. Sheka , Leonid A. Chernozatonskii

The formation of gold nanowires in vacuum at room temperature reveals a periodic spectrum of exceptionally stable diameters. This is identified as shell structure similar to that which was recently discovered for alkali metals at low…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 A. I. Mares , A. F. Otte , L. G. Soukiassian , R. H. M. Smit , J. M. van Ruitenbeek

We present a first-principles study of the electronic properties of silicon clathrate nanowires intercalated with various types of alkali or alkaline-earth atoms. We find that the band structure of the nanowires can be tuned by varying the…

Materials Science · Physics 2009-11-11 S. Sirichantaropass , V. M. García-Suárez , C. J. Lambert

The recently reported experimental optical spectra of double-walled carbon nanotubes exhibit more peaks than it could be expected based on the layers alone. The appearance of excess peaks has been attributed to the interlayer interaction.…

Mesoscale and Nanoscale Physics · Physics 2020-08-12 Valentin N. Popov

When two-dimensional atomic crystals are brought into close proximity to form a van der Waals heterostructure, neighbouring crystals can start influencing each others electronic properties. Of particular interest is the situation when the…

We use first principles simulations to investigate the electronic properties of a set of carbon nanocages with a bipartite structure. These nanocages are exclusively formed by hexagonal and tetragonal rings and we show they feature frontier…