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Carbon nanoribbons (CNRs) are graphene (planar) structures with large aspect ratio. Carbon nanobelts (CNBs) are small graphene nanoribbons rolled up into spiral-like structures, i. e., carbon nanoscrolls (CNSs) with large aspect ratio. In…

介观与纳米尺度物理 · 物理学 2015-05-18 B. V. C. Martins , D. S. Galvão

Carbon nanoscroll is a unique topologically open configuration of graphene nanoribbon possessing outstanding properties and application perspectives due to its morphology. However molecular dynamics study of nanoscrolls with more than a few…

介观与纳米尺度物理 · 物理学 2015-07-15 Alexander V. Savin , Elena A. Korznikova , Sergey V. Dmitriev

We generate representative structural models of amorphous carbon (a-C) from constant-volume quenching from the liquid with subsequent relaxation of internal stresses in molecular dynamics simulations using empirical and machine-learning…

材料科学 · 物理学 2020-01-07 Richard Jana , Daniele Savio , Volker L. Deringer , Lars Pastewka

An increasing variety of crystal structures has been observed in soft condensed matter over the past two decades, surpassing most expectations for the diversity of arrangements accessible through classical driving forces. Here, we survey…

软凝聚态物质 · 物理学 2022-03-01 Julia Dshemuchadse

Amorphous metallic foams are prospective materials due to unique combination of their mechanical and energy-absorption properties. In the present work, atomistic dynamics simulations are performed under isobaric conditions with the pressure…

材料科学 · 物理学 2020-05-22 Bulat N. Galimzyanov , Anatolii V. Mokshin

Iron, cobalt and nickel nanoparticles, grown in the gas phase, are known to arrange in chains and bracelet-like rings due to the long-range dipolar interaction between the ferromagnetic (or super-paramagnetic) particles. We investigate the…

材料科学 · 物理学 2007-06-28 A. Hucht , S. Buschmann , P. Entel

We use molecular dynamics simulation to study the relationship between structure and dynamics in supercooled binary Lennard--Jones nanoparticles over a range of particle sizes. The glass transition temperature of the nanoparticles is found…

软凝聚态物质 · 物理学 2025-05-15 Weikai Qi , Shreya Tiwary , Richard K. Bowles

Development of high strength carbon fibers (CFs) requires an understanding of the relationship between the processing conditions, microstructure and resulting properties. We developed a molecular model that combines kinetic Monte Carlo…

材料科学 · 物理学 2017-03-29 Saaketh Desai , Chunyu Li , Tongtong Shen , Alejandro Strachan

The interaction of mass-selected atomic clusters and nanoparticles with surfaces attracts strong interest in view of fundamental research and technological applications. Understanding dynamics of the deposition process is important for…

原子与分子团簇 · 物理学 2021-07-12 Yannick Fortouna , Pablo de Vera , Alexey Verkhovtsev , Andrey V. Solov'yov

The study of the mechanical properties of nanostructured systems has gained importance in theoretical and experimental research in recent years. Carbon nanotubes (CNTs) are one of the strongest nanomaterials found in nature, with Young's…

Biomembranes, which are mainly composed of neutral and charged lipids, exhibit a large variety of functional structures and dynamics. Here, we report a coarse-grained molecular dynamics (MD) simulation of the phase separation and…

软凝聚态物质 · 物理学 2016-11-07 Hiroaki Ito , Yuji Higuchi , Naofumi Shimokawa

Nanoscrolls consist of sheets rolled up into a papyrus-like form. Their open ends produce great radial flexibility, which can be exploited for a large variety of applications, from actuators to hydrogen storage. They have been successfully…

介观与纳米尺度物理 · 物理学 2015-06-02 Eric Perim , Douglas S. Galvao

We have investigated several ultra-thin copper nanobridges between supporting layers using a classical molecular dynamics simulation and a many-body potential function of the second-moment approximation of tight-binding scheme. This…

材料科学 · 物理学 2009-11-07 Jeong Won Kang , Ho Jung Hwang

Graphynes and graphdiynes are carbon 2D allotrope structures presenting both sp2 and sp hybridized atoms. These materials have been theoretically predicted but due to intrinsic difficulties in their synthesis, only recently some of these…

介观与纳米尺度物理 · 物理学 2017-02-21 Daniel Solis , Cristiano F. Woellner , Daiane D. Borges , Douglas S. Galvao

Extensive molecular dynamics simulations of water permeation and ion selectivity of the single-walled carbon nanotubes with the radial deformation are presented . The simulated results indicate that there is a close relationship between the…

介观与纳米尺度物理 · 物理学 2012-03-01 Xu Kui , Wang Qing-Song , Tan Bin , Chen Ming-Xuan , Miao Ling , Jiang Jian-Jun

This study aims at finding a method for constructing molecular dynamics like models using the formalism of cellular automata for fast simulation of fluid dynamic systems (including compressible phenomena). In as much as the results…

comp-gas · 物理学 2009-09-25 Himanshu Agrawal

Biochars are an exciting class of environmental materials with a wide range of applications, including carbon storage and sequestration, soil enhancement, and pollution remediation. However, the limited knowledge of their molecular…

材料科学 · 物理学 2024-04-09 Audrey Ngambia , Ondřej Mašek , Valentina Erastova

Carbon nanotubes bridge the molecular and crystalline quantum worlds, and their extraordinary electronic, mechanical and optical properties have attracted enormous attention from a broad scientific community. We review the basic principles…

介观与纳米尺度物理 · 物理学 2010-04-01 F. Kuemmeth , H. O. H. Churchill , P. K. Herring , C. M. Marcus

Context: Chemical models of dense cloud cores often utilize the so-called pseudo-time-dependent approximation, in which the physical conditions are held fixed and uniform as the chemistry occurs. In this approximation, the initial…

太阳与恒星天体物理 · 物理学 2015-05-18 G. E. Hassel , E. Herbst , E. A. Bergin

One of the most promising applications in nanoscience is the design of new materials to improve water permeability and selectivity of nanoporous membranes. Understanding the molecular architecture behind these fascinating structures and how…

软凝聚态物质 · 物理学 2021-09-10 João P. K. Abal , Rodrigo F. Dillenburg , Mateus H. Köhler , Marcia C. Barbosa