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Spatial confinement in nanoporous media affects the structure, thermodynamics and mobility of molecular soft matter often markedly. This article reviews thermodynamic equilibrium phenomena, such as physisorption, capillary condensation,…

Soft Condensed Matter · Physics 2015-02-17 Patrick Huber

We present the molecular dynamics study of benzene molecules confined into the single wall carbon nanotube. The local structure and orientational ordering of benzene molecules are investigated. It is found that the molecules mostly group in…

Mesoscale and Nanoscale Physics · Physics 2014-11-14 Yu. D. Fomin , E. N. Tsiok , V. N. Ryzhov

Understanding how colloidal suspensions behave in confined environments has a striking relevance in practical applications. Despite the fact that the behaviour of colloids in the bulk is key to identify the main elements affecting their…

Soft Condensed Matter · Physics 2021-09-29 Alessandro Patti , Alejandro Cuetos

Boron suboxide B6O, the hardest known oxide, has an R-3m crystal structure ({\alpha}-B6O) that can be described as an oxygen-intercalated structure of {\alpha}-boron, or, equivalently, as a cubic close packing of B12 icosahedra with two…

Boron is the fifth element in the periodic table and possesses rich chemistry second only to carbon. A striking feature of boron is that B12 icosahedral cages occur as the building blocks in bulk boron and many boron compounds. This is in…

Mesoscale and Nanoscale Physics · Physics 2016-06-22 Baojie Feng , Jin Zhang , Qing Zhong , Wenbin Li , Shuai Li , Hui Li , Peng Cheng , Sheng Meng , Lan Chen , Kehui Wu

Experimental measurements have reported ultra-fast and radius-dependent water transport in carbon nanotubes which are absent in boron nitride nanotubes. Despite considerable effort, the origin of this contrasting (and fascinating) behaviour…

Materials Science · Physics 2022-02-11 Fabian L Thiemann , Christoph Schran , Patrick Rowe , Erich A Müller , Angelos Michaelides

We examine the electronic structure of recently fabricated in-plane heterojunctions of zigzag graphene nanoribbons embedded in hexagonal boron nitride. We focus on hitherto unexplored interface configurations in which both edges of the…

Mesoscale and Nanoscale Physics · Physics 2024-06-03 Michele Pizzochero , Nikita V. Tepliakov , Johannes Lischner , Arash A. Mostofi , Efthimios Kaxiras

We report on the measurement of the effective radial modulus of multiwalled Boron Nitride nanotubes with external radii in the range 3.7 to 36 nm and number of layers in between 5 and 48. These Boron Nitride nanotubes are radially much…

Materials Science · Physics 2015-07-20 Hsiang-Chih Chiu , Suenne Kim , Christian Klinke , Elisa Riedo

Finite magnesium oxide nanotubes are investigated. Stacks of four parallel squares, hexagons, octagons, and decagons are constructed and studied by the pseudopotential density functional theory within the local-density approximation.…

Materials Science · Physics 2009-11-10 G. Bilalbegovic

We present new experimental results of low temperature x-ray synchrotron diffraction, neutron scattering and very low temperature (mK-range) bulk measurements on the nanotube system ${\tube}$. The crystal structure determined from our data…

We apply first-principles calculations to study the electronic structure of boron nitride nanocones with disclinations of different angles $\theta=n\pi/3$. Nanocones with odd values of $n$ present antiphase boundaries that cause a reduction…

Materials Science · Physics 2007-05-23 Sergio Azevedo , Mario S. C. Mazzoni , H. Chacham , R. W. Nunes

Carbon nanostructures with zigzag edges exhibit unique properties with exciting potential applications. Such nanostructures are generally synthesized under vacuum because their zigzag edges are unstable under ambient conditions: a barrier…

While much is known about isoelectronic materials related to carbon nanostructures, such as boron nitride layers and nanotubes, rather less is known about equivalent silicon based materials. Following the recent discovery of phosphorene, we…

Materials Science · Physics 2017-01-04 Tomás Alonso-Lanza , Andrés Ayuela , Faustino Aguilera-Granja

Borophene (two-dimensional boron sheet) is a new type of two-dimensional material, which was recently grown successfully on single crystal Ag substrates. In this paper, we investigate the electronic structure and bonding characteristics of…

Mesoscale and Nanoscale Physics · Physics 2016-06-23 Bo Peng , Hao Zhang , Hezhu Shao , Yuanfeng Xu , Rongjun Zhang , Heyuan Zhu

The recent advent of cutting-edge experimental techniques allows for a precise synthesis of monodisperse subnanometer metal clusters composed by just a few atoms, and opens new possibilities for subnanometer science. The decoration of…

Materials Science · Physics 2020-10-07 María Pilar de Lara-Castells , Salvador Miret-Artés

Edge-induced gap states in finite phosphorene layers are examined using analytical models and density functional theory. The nature of such gap states depends on the direction of the cut. Armchair nanoribbons are insulating, whereas…

Mesoscale and Nanoscale Physics · Physics 2015-06-19 A. Carvalho , A. S. Rodin , A. H. Castro Neto

We predict new forms of carbon consisting of one and two dimensional networks of interlinked single wall carbon nanotubes, some of which are energetically more stable than van der Waals packing of the nanotubes on a hexagonal lattice. These…

Materials Science · Physics 2009-10-31 T. Yildirim , O. Gulseren , C. Kilic , S. Ciraci

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

Molecular dynamics (MD) simulations of equilibrium structures and flows of polar water, nonpolar argon and methane, and mixtures of water and methane confined by single - walled carbon nanotubes (SWCNTs) with different rectangular cross…

Mesoscale and Nanoscale Physics · Physics 2018-12-27 L. V. Mirantsev , A. K. Abramyan

Nanoscale polar structures are significant for understanding polarization processes in low-dimensional systems and hold potential for developing high-performance electronics. Here, we demonstrate a polar vortex superstructure arising from…

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