Molecular dynamics simulations of sequential cluster ion impacts
نویسندگان
چکیده
منابع مشابه
Simulating cluster-ion impacts
Although cluster-ion interactions may superficially appear to resemble those in nuclear physics, there are important differences. First, at the energies of interest the deBroglie wavelength of an atom in the cluster is so short compared to atomic dimensions that the atom's trajectory in a solid is classical. Thus, one may use the Born-Oppenheimer approximation in which the particles all obey Ne...
متن کاملGold-thiolate cluster emission from SAMs under keV ion bombardment: Experiments and molecular dynamics simulations
In this contribution the emission of gold-molecule cluster ions from self-assembled monolayers (SAMs) of alkanethiols on gold is investigated using time-of-flight secondary ion mass spectrometry (ToF-SIMS). Layers of alkanethiols [CH3(CH2)nSH] with various chain lengths (n 1⁄4 8, 12, 16) have been chosen because they form well-ordered molecular monolayers on gold. First, we compare and interpre...
متن کاملMolecular Dynamics Simulations of Atomic Collisions for Ion Irradiation Experiments
An understanding of the way damage is formed during ion implantation of solids is very important in many research and industrial applications. One of the best ways to study damage formation theoretically is provided by molecular dynamics simulations, in which the movement of atoms is followed by solving numerically the equations of motion. The purpose of work described in this thesis has been t...
متن کاملIon motions in molecular dynamics simulations on DNA.
Counterions play a significant role in DNA structure and function, and molecular dynamics (MD) simulations offer the prospect of detailed description of the dynamical structure of ions at the molecular level. However, the motions of mobile counterions are notably slow to converge in MD on DNA. Obtaining accurate and reliable MD simulations requires knowing just how much sampling is required for...
متن کاملMolecular Dynamics Simulation of Al Energetic Nano Cluster Impact (ECI) onto the Surface
On the atomic scale, Molecular Dynamic (MD) Simulation of Nano Al cluster impact on Al (100) substrate surface has been carried out for energies of 1-20 eV/atom to understand quantitatively the interaction mechanisms between the cluster atoms and the substrate atoms. The many body Embedded Atom Method (EAM) was used in this simulation. We investigated the maximum substrate temperature Tmax and...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
سال: 2005
ISSN: 0168-583X
DOI: 10.1016/j.nimb.2004.10.021