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We report the production of covalently bonded selenium double-helices within the narrow cavity inside double-wall carbon nanotubes. The double-helix structure, characterized by high-resolution transmission electron microscopy and X-ray…

Mesoscale and Nanoscale Physics · Physics 2013-05-21 Toshihiko Fujimori , Renato Batista dos Santos , Takuya Hayashi , Morinobu Endo , Katsumi Kaneko , David Tománek

Carbon nanotubes are modeled as point particle configurations in the framework of Molecular Mechanics, where interactions are described by means of short range attractive-repulsive potentials. The identification of local energy minimizers…

Mesoscale and Nanoscale Physics · Physics 2019-09-27 Manuel Friedrich , Edoardo Mainini , Paolo Piovano

Nanobubbles formed in monolayers of transition metal dichalcogenides (TMDCs) on top of a substrate feature localized potentials, in which electrons can be captured. We show that the captured electronic density can exhibit a non-trivial…

Mesoscale and Nanoscale Physics · Physics 2021-12-22 Roberto Rosati , Frank Lengers , Christian Carmesin , Matthias Florian , Tilmann Kuhn , Frank Jahnke , Michael Lorke , Doris E. Reiter

Molecular level components, like carbon multiwalled nanotubes (MWNT), show great potential for future nanoelectronics. At low frequencies, only the outermost carbon layer determines the transport properties of the MWNT. Due to the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Markus Ahlskog , Pertti Hakonen , Mikko Paalanen , Leif Roschier , Reeta Tarkiainen

We report the experimental realization of double quantum dots in single-walled carbon nanotubes. The device consists of a nanotube with source and drain contact, and three additional top-gate electrodes in between. We show that, by…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 M. R. Graeber , M. Weiss , C. Schoenenberger

Radial elastic corrugation of multiwalled carbon nanotubes under hydrostatic pressure is demonstrated by using the continuum elastic theory. Various corrugation patterns are observed under a pressure of several GPa, wherein the stable…

Materials Science · Physics 2009-03-17 Hiroyuki Shima , Motohiro Sato

A suspended carbon nanotube can act as a nanoscale resonator with remarkable electromechanical properties and the ability to detect adsorption on its surface at the level of single atoms. Understanding adsorption on nanotubes and other…

Mesoscale and Nanoscale Physics · Physics 2012-09-05 Zenghui Wang , Jiang Wei , Peter Morse , J. Gregory Dash , Oscar E. Vilches , David H. Cobden

Carbon nanomembranes (CNMs) are nanometer-thin disordered carbon materials that are suitable for a range of applications, from energy generation and storage, through to water filtration. The structure-property relationships of these…

Spontaneous polygonization for a multi-walled carbon nanotubes (MWCNTs) have been observed for about two decades. In present manuscript, this phenomenon is understood by the competition between cohesion energy (with lattice mismatching…

Mesoscale and Nanoscale Physics · Physics 2015-05-30 Weihua Mu , Zhongcan Ou-Yang

Atomic nanolines are one dimensional systems realized by assembling many atoms on a substrate into long arrays. The electronic properties of the nanolines depend on those of the substrate. Here, we demonstrate that to fully understand the…

Materials Science · Physics 2017-12-20 M. Longobardi , C. J. Kirkham , R. Villarreal , S. A. Koster , D. R. Bowler , Ch. Renner

We use an atom-atom potential between carbon atoms to obtain an interaction potential between nanotubes (assumed rigid), thereby calculating the cohesive energy of a bunch of nanotubes in hexagonal two dimensional packing. The model…

Materials Science · Physics 2007-05-23 V. K. Jindal , Shuchi Gupta , K. Dharamvir

Structural and thermal characteristics of crystalline ropes of single-wall carbon nanotubes (SWCNTs) are investigated. Novel crystalline ropes of polygonized SWCNTs produced by laser irradiation exhibit rounded-hexagonal cross sections in…

Materials Science · Physics 2015-10-28 M. J. Lopez , A. Rubio , J. A. Alonsos

A series of MnO2 unique nanostructures were synthesized by a facile hydrothermal method with microwave-assisted procedures. A novel nanostructure formation mechanism has been proposed, that MnO6 octahedral nuclei and molecular layers can be…

Mesoscale and Nanoscale Physics · Physics 2012-07-16 R. Zeng , J. Q. Wang , G. D. Du , W. X. Li , Z. X. Chen , S. Li , S. X. Dou

Carbon nanorings are hoop-shaped, {\pi}-conjugated macrocycles which form the fundamental annular segments of single-walled carbon nanotubes (SWNTs). In a very recent report, the structures of chiral carbon nanorings (which may serve as…

Mesoscale and Nanoscale Physics · Physics 2015-03-13 Bryan M. Wong , Jonathan W. Lee

Carbon nanotubes are one-dimensional and very narrow. These obvious facts imply that under doping with boron and nitrogen, microscopic doping inhomogeneity is much more important than for bulk semiconductors. We consider the possibility of…

Materials Science · Physics 2009-11-07 Paul E. Lammert , Vincent H. Crespi , Angel Rubio

Moir\'e materials, typically confined to stacking atomically thin, two - dimensional (2D) layers such as graphene or transition metal dichalcogenides, have transformed our understanding of strongly correlated and topological quantum…

Materials Science · Physics 2026-01-09 Ilya Popov , Elena Besley

Dimensions and molecular structure play pivotal roles in the principle of heat conduction. The dimensional characteristics of solution within nanoscale systems depend on the degrees of confinement. However, the influence of such variations…

Soft Condensed Matter · Physics 2024-05-14 Shun Imamura , Yusei Kobayashi , Eiji Yamamoto

We report the existence of moir\'e patterns and magic angle physics in all families of chiral collapsed carbon nanotubes. A detailed study of the electronic structure of all types of chiral nanotubes, previously collapsed via molecular…

Molecular Dynamics simulations of water molecules in nanometre sized cylindrical channels connecting two reservoirs show that the permeation of water is very sensitive to the channel radius and to electric polarization of the embedding…

Soft Condensed Matter · Physics 2009-11-07 Rosalind Allen , Simone Melchionna , Jean-Pierre Hansen

Carbon nanotubes provide a new class of molecular wires that display new and exciting mesoscopic transport properties. We provide a detailed theoretical description for transport in multi-wall nanotubes, where both disorder and strong…

Strongly Correlated Electrons · Physics 2009-11-07 R. Egger , A. O. Gogolin
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