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Theoretical calculations of the elastic response of carbon composites and amorphous carbon are reported. The studied composites consist of crystalline nanoinclusions, either spherical diamonds or carbon nanotubes, embedded in amorphous…

Materials Science · Physics 2011-11-09 Maria Fyta , P. C. Kelires

We have characterized the electrical conductivity of the composite which consists of multi-walled carbon nanotubes dispersed in SU8 epoxy resin. Depending on the processing conditions of the epoxy (ranging from non-polymerized to…

Materials Science · Physics 2013-06-13 Claudio Grimaldi , Marijana Mionić , Richard Gaal , Lászlo Forró , Arnaud Magrez

We report on the characterization of torsional oscillators which use multi-walled carbon nanotubes as the spring elements. Through atomic-force-microscope force-distance measurements we are able to apply torsional strains to the nanotubes…

Materials Science · Physics 2009-11-07 P. A. Williams , S. J. Papadakis , A. M. Patel , M. R. Falvo , S. Washburn , R. Superfine

In the last decade, a large number of studies at the experimental level in electrochemical systems for energy storage devices have been performed. However, theoretical approaches are highly desirable to understand the physicochemical…

We report that ice nanotubes with odd number of side faces inside carbon nanotubes exhibit spontaneous electric polarization along its axes direction by using molecular dynamics simulations. The mechanism of this nanoscale…

Materials Science · Physics 2015-06-25 Chuanfu Luo , Wei Fa , Jinming Dong

We propose a previously unexplored way to form Nb nanowires from NbCl$_3$ molecules inside carbon nanotubes (CNTs). We have studied this reaction by ab initio density functional calculations and found it to be catalytically promoted in…

Mesoscale and Nanoscale Physics · Physics 2019-12-09 Dan Liu , David Tomanek

Atomic models of zigzag (n, 0)- and armchair (n,n)-like NiCl2 nanotubes (n = 4 - 29) formed by rolling (100) single layers of the bulk NiCl2 which crystallizes in the CdCl2-type structure, are constructed and their electronic properties and…

Materials Science · Physics 2007-05-23 V. V. Ivanovskaya , A. N. Enyashin , N. I. Medvedeva , A. L. Ivanovskii

Using the semiempirical tight binding method as implemented in the xTB program, we characterized M\"obius boron-nitride and carbon-based nanobelts with different sizes and compared them with normal nanobelts. The calculated properties…

Materials Science · Physics 2025-09-01 C. Aguiar , N. Dattani , I. Camps

The inclusion and encapsulation of terthiophene (T3) molecules inside zigzag single-walled carbon nanotubes (CNTs) is addressed by density functional calculations. We consider the T3 molecule inside five semiconducting CNTs with diameters…

Materials Science · Physics 2009-11-11 W. Orellana , S. O. Vasquez

We present the design of a new type of compact toroidal, or "halo", ion trap. Such traps may be useful for mass spectrometry, studying small Coulomb cluster rings, quantum information applications, or other quantum simulations where a ring…

Quantum Physics · Physics 2015-05-19 M. J. Madsen , C. H. Gorman

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

The structural properties of the uranium-encapsulated nano-cage U@Au14 are predicted using density functional theory. The presence of the uranium atom makes the Au14 structure more stable than the empty Au14-cage, with a triplet ground…

Atomic and Molecular Clusters · Physics 2013-12-30 Yang Gao , Xing Dai , Seung-gu Kang , Camilo Andres Jimenez Cruz , Minsi Xin , Yan Meng , Jie Han , Zhigang Wang , Ruhong Zhou

We demonstrate, for the first time, the large electromechanical response in nematic liquid crystalline elastomers filled with a very low (~0.01%) concentration of carbon nanotubes, aligned along the nematic director at preparation. The…

Soft Condensed Matter · Physics 2009-11-10 S. Courty , J. Mine , A. R. Tajbakhsh , E. M. Terentjev

Chemical vapor deposition synthesis of single-walled carbon nanotubes experiments, using Fe catalyst, and alternating methane and carbon monoxide as carbon feedstocks, lead to the reversible formation of junctions between tubes of different…

Under the application of electrical currents, metal nanocrystals inside carbon nanotubes can be bodily transported. We examine experimentally and theoretically how an iron nanocrystal can pass through a constriction in the carbon nanotube…

Mesoscale and Nanoscale Physics · Physics 2013-04-30 Sinisa Coh , Will Gannett , A. Zettl , Marvin L. Cohen , Steven G. Louie

We explore theoretically the properties of engineered bimetallic nano-structured superlattices where an array of nano-clusters of a simple (single band) metal are embedded periodically inside another simple metal with a different work…

Mesoscale and Nanoscale Physics · Physics 2025-05-16 Shinjan Mandal , Shrihari Soundararajan , Manish Jain , H. R. Krishnamurthy

We calculate the current and electrostatic potential drop in metallic carbon nanotube wires self-consistently, by solving the Green's function and electrostatics equations in the ballistic case. About one tenth of the applied voltage drops…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 A. Svizhenko , M. P. Anantram , T. R. Govindan

We investigate the role of topological defects in exciton behavior in (6,5) semiconducting single-walled carbon nanotubes using density functional theory. Our study identifies the helical Stone-Wales defect as a prominent trap for triplet…

Mesoscale and Nanoscale Physics · Physics 2025-02-20 Timur Biktagirov , Uwe Gerstmann , Wolf Gero Schmidt

We have studied zig-zag boron nitride (BN) nanotubes doped with the Ni hexagonal-closepacked nanowire. The doped BN nanotubes are ferromagnetic metals with substantial magnetism. Some special magnetic properties resulting from the…

Materials Science · Physics 2007-05-23 H. J. Xiang , Jinlong Yang , J. G. Hou , Qingshi Zhu

We study spin-orbit coupling in metallic carbon nanotubes (CNTs) within the many-body Tomonaga-Luttinger liquid (TLL) framework. For a well defined sub-class of metallic CNTs, that contains both achiral zig-zag as well as a sub-set of…

Strongly Correlated Electrons · Physics 2016-06-15 Piotr Chudzinski
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