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We develop a general approach to calculations of the electron spectrum of metallic multi-wall carbon nanotubes (MWNT) with arbitrary number of coaxial layers. It is based on the model with singular attractive potential of equidistant…

Mesoscale and Nanoscale Physics · Physics 2019-08-17 A. A. Abrikosov, , D. V. Livanov , A. A. Varlamov

We perform systematic numerical simulations for carbon nanotube (CNT) film microstrip antennas to fabricate flexible and durable applications in terms of various device design parameters. The selection of appropriate materials for…

Applied Physics · Physics 2022-06-22 HeeBong Yang , Aaron Gross , Na Young Kim

We report on single-wall carbon nanotube (SWCNT) specific $^{13}$C isotope enrichment. The high temperature annealing of isotope enriched fullerenes encapsulated in SWCNTs yields double-wall carbon nanotubes (DWCNTs) with a high isotope…

Materials Science · Physics 2007-05-23 F. Simon , Ch. Kramberger , R. Pfeiffer , H. Kuzmany , V. Zolyomi , J. Kurti , P. M. Singer , H. Alloul

We investigate the stable structures of Fe-filled single-walled carbon nanotubes (SWNTs) on Ni(111), using density functional theory calculations. We find stable geometries and electronic states for the nanotube on Ni(111). We propose the…

Materials Science · Physics 2009-11-11 Melanie David , Tomoya Kishi , Masanori Kisaku , Hiroshi Nakanishi , Hideaki Kasai

Channeling of high-energy particles in straight and bent multi-wall nanotubes (MWNT) has been studied in computer simulations and compared to the channeling properties of single-wall nanotubes (SWNT) and bent crystal lattices. It is…

Accelerator Physics · Physics 2009-11-11 S. Bellucci , V. M. Biryukov , A. Cordelli

Arc-discharge with carbon electrodes containing Ni and Y2O3 in the presence of Fe(CO)5 vapors have been investigated. It is found that unlike the cathode deposit, the web deposited in the chamber contains mainly metallic single-walled…

Materials Science · Physics 2009-04-01 Rakesh Voggu , A. Govindaraj , C. N. R. Rao

The effect of Fe and Ni catalysts on the synthesis of carbon nanotubes (CNTs) using atmospheric pressure chemical vapor deposition (APCVD) was investigated. Field emission scanning electron microscopy (FESEM) analysis suggests that the…

Materials Science · Physics 2019-08-02 J. Sengupta , C. Jacob

Usually, in optical spectra of double-walled carbon nanotubes (DWCNTs) weak van der Waals coupling between the layers leads only to a small shift of transition energies with respect to their values in pristine single-walled nanotubes.…

Mesoscale and Nanoscale Physics · Physics 2020-09-30 D. V. Chalin , S. B. Rochal

Nanofibre-based optical cavities are particularly useful for quantum optics application, such as the development of integrated single-photon sources, and for studying fundamental light-matter interactions in cavity quantum electrodynamics…

Chemical functionalization of nanocarbons is an important strategy to produce electrochemical systems with higher energy/power density by generating surface functional groups with additional faradaic contribution, by increasing their…

Applied Physics · Physics 2020-08-13 Evgeny Senokosa , Moumita Ranaa , Cleis Santosa , Rebeca Marcilla , Juan J. Vilatela

In this work we use density functional theory (DFT) calculations to benchmark empirical potentials for the interaction between nickel and sp$^2$ bonded carbon nanoparticles. These potentials are then used in order to investigate how Ni…

Materials Science · Physics 2019-10-02 Samaneh Nasiri , Kai Wang , Mingjun Yang , Qianqian Li , Michael Zasier

The electrical conductivity of metallic carbon nanotubes (CNTs) quickly saturates with respect to bias voltage due to scattering from a large population of optical phonons. Decay of these dominant scatterers in pristine CNTs is too slow to…

Materials Science · Physics 2017-04-05 Andrij Vasylenko , Jamie Wynn , Paulo Medeiros , Andrew J. Morris , Jeremy Sloan , David Quigley

The photoluminescence (PL) quantum yield of single-walled carbon nanotubes (SWNTs) is relatively low, with various quenching effects by metallic species reported in the literature. Here, we report the first case of metal enhanced…

Materials Science · Physics 2010-10-29 Guosong Hong , Scott M. Tabakman , Kevin Welsher , Hailiang Wang , Xinran Wang , Hongjie Dai

This article provides an overview of the modeling of the effective thermomechanical properties of the multifunctional carbon nanotube (CNT) reinforced hybrid composites for advanced structural applications. The novel constructional feature…

Computational Physics · Physics 2017-04-13 S. I. Kundalwal

Single walled carbon nanotubes (SWNT) have displayed a wealth of quantum transport phenomena thus far. Defect free, unperturbed SWNTs with wellbehaved or tunable metal contacts are important to probing the intrinsic electrical properties of…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 Jien Cao , Qian Wang , Hongjie Dai

We report the fabrication details and low-temperature characteristics of the first carbon nanotube (CNT) quantum dots on flakes of hexagonal boron nitride (hBN) as substrate. We demonstrate that CNTs can be grown on hBN by standard chemical…

Mesoscale and Nanoscale Physics · Physics 2014-07-21 A. Baumgartner , G. Abulizi , K. Watanabe , T. Taniguchi , J. Gramich , C. Schoenenberger

We show that carbon nanotubes (CNT) are good candidates for realizing one-dimensional topological superconductivity with Majorana fermions localized near the end points. The physics behind topological superconductivity in CNT is novel and…

Superconductivity · Physics 2013-08-14 Jay D. Sau , Sumanta Tewari

We report that entirely end-bonded multi-walled carbon nanotubes (MWNTs) can show superconductivity with the transition temperature Tc as high as 12K that is approximately 40-times larger than those reported in ropes of single-walled…

Superconductivity · Physics 2009-11-11 I. Takesue , J. Haruyama , N. Kobayashi , S. Chiashi , S. Maruyama , T. Sugai , H. Shinohara

As the dimensions of electronic devices approach those of molecules, the size, geometry and chemical composition of the contact electrodes play increasingly dominant roles in device functions. It is shown here that single-walled carbon…

Materials Science · Physics 2007-05-23 Pengfei Qi , Ali Javey , Marco Rolandi , Qian Wang , Erhan Yenilmez , Hongjie Dai

We experimentally demonstrate laser-driven deposition of single-walled carbon nanotubes (CNTs) in suspended core fibers (SCFs) for the first time. Two samples for each SCF type with three (SCF1) and four (SCF2) air holes are individually…

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