Download or read book Interactions of Energetic Particles and Clusters with Solids written by and published by . This book was released on 1990 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ion beams are being applied for surface modifications of materials in a variety of different ways: ion implantation, ion beam mixing, sputtering, and particle or cluster beam-assisted deposition. Fundamental to all of these processes is the deposition of a large amount of energy, generally some keV's, in a localized area. This can lead to the production of defects, atomic mixing, disordering and in some cases, amorphization. Recent results of molecular dynamics computer simulations of energetic displacement cascades in Cu and Ni with energies up to 5 keV suggest that thermal spikes play an important role in these processes. Specifically, it will be shown that many aspects of defect production, atomic mixing and cascade collapse'' can be understood as a consequence of local melting of the cascade core. Included in this discussion will be the possible role of electron-phonon coupling in thermal spike dynamics. The interaction of energetic clusters of atoms with solid surfaces has also been studied by molecular dynamics simulations. this process is of interest because a large amount of energy can be deposited in a small region and possibly without creating point defects in the substrate or implanting cluster atoms. The simulations reveal that the dynamics of the collision process are strongly dependent on cluster size and energy. Different regimes where defect production, local melting and plastic flow dominate will be discussed. 43 refs., 7 figs.
Download or read book Interactions of energetic charged particles with solids written by Allen N. Goland and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cluster Ion Solid Interactions written by Zinetula Insepov and published by CRC Press. This book was released on 2016-04-21 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cluster Ion-Solid Interactions: Theory, Simulation, and Experiment provides an overview of various concepts in cluster physics and related topics in physics, including the fundamentals and tools underlying novel cluster ion beam technology. The material is based on the author's highly regarded courses at Kyoto University, Purdue University, the Mos
Download or read book Interaction of Radiation with Solids written by Adli Bishay and published by . This book was released on 1967 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pt. I. Magnetic resonance. -- pt. II. Electrical conductivity. -- pt. III. Radiation effect I (non-crystalline solids). -- pt. IV. Radiation effects II (crystalline solids). -- pt. V. Metals. -- pt. VI. Spectroscopy. -- pt. VII. Quantum electronics.
Download or read book Handbook of Nanophysics written by Klaus D. Sattler and published by CRC Press. This book was released on 2010-09-17 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of nanoscience was pioneered in the 1980s with the groundbreaking research on clusters, which later led to the discovery of fullerenes. Handbook of Nanophysics: Clusters and Fullerenes focuses on the fundamental physics of these nanoscale materials and structures. Each peer-reviewed chapter contains a broad-based introduction and enhances
Download or read book Interaction of Energetic Charged Particles with Solids written by and published by . This book was released on 1973 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interaction of Charged Particles with Solids and Surfaces written by Alberto Gras-Martí and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 699 pages. Available in PDF, EPUB and Kindle. Book excerpt: Early in 1989, while most of us were gathered in the Mediterranean five-centuries-old city of Alacant, the idea of a school on stopping and particle penetration phenomena came to our minds. Later that year when discussing this plan with some of the participants in the 13th International Conference on Atomic Collisions in Solids in Aarhus, we were pleased to note that the proposal was warmly welcomed indeed by the community. An Advanced Study Institute on this or a related subject had not been organized in the last decade. Because of the progress made particularly in the interaction of high energy beams with matter, and the many applications which the general subject of the stopping of charged particles (ions and electrons) in matter enjoys, a Study Institute appeared a worthy enterprise. Even though several international conference series cover developments in these areas, they miss tutorial introductions to the field. The title chosen was Interaction of Charged Particles with Solids and Surfaces, and the objectives were stated as follows: "to cover theory and experiments, including selected applications and hot topics, of the stopping of charged particles (ions and electrons) in matter. The emphasis will be on outlining the areas where further effort is needed, and on specifying the basic needs in applications. Fundamental concepts will prevail over applications, and the character of the Institute as a school will be stressed. " The school was directed by Fernando Flores (Spain), Herbert M. Urbassek (Germany), Nestor R.
Download or read book Computer Modelling and Simulation of the Interaction of KeV Clusters with Molecular Solids written by Jaydeep Mody and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: There is an increasing demand for techniques that are able to provide high resolution molecular imaging of biological materials. Secondary Ion Mass Spectrometry (SIMS) is one technique that has been focused on in order to achieve the above. Traditionally, SIMS has predominantly made use of atomic projectiles for this bombardment process - Atomic SIMS. However, a bit over two decades ago, a breakthrough in SIMS occurred with the advent of cluster projectiles - Cluster SIMS. This has generated deep interest for studying the nature of cluster-surface interactions. Ion-surface interactions have constantly had access to simulation programs with predictive capability. For cluster-surface interactions however, there is no such software available (yet). Some existing techniques are too slow for making predictions. Thus, the purpose of this thesis was to develop a model that was able to help in predicting SIMS relevant information for these cluster-surface interactions. The model used in the thesis is based on a simplistic energy spread approach that behaves according to a diffusional process. With the help of MD simulations, it is shown that the above approach can be a valid method for consolidating prediction capabilities for cluster-surface interactions. It has been shown that by dumping energy into the target and allowing this energy to spread, the dimension of the crater that is formed from a cluster impact can be emulated. In addition, the amount of material removed from the solid can also be matched. It was found that the following are key initial criteria that have to be met for the deposited energy. The angular distribution of the initially energetic particles is needed to be randomly and spherically distributed. The energy density (or temperature) is not required to be very sensitive although above a certain threshold. The energy requires to be deposited in such as way that its spread in the vertical direction is twice that in the lateral dimensions.
Download or read book Ion Solid Interactions written by Michael Nastasi and published by Cambridge University Press. This book was released on 1996-03-29 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive guide to an important materials science technique for students and researchers.
Download or read book Clusters and Small Particles written by Boris Mikhaĭlovich Smirnov and published by Springer Science & Business Media. This book was released on 2000-06-08 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Not merely a discussion of small particles or clusters of atoms, molecules, but also the systems they constitute. The goal is to analyse the properties of such finite aggregates and their behaviour in gases and plasmas, and to investigate processes that involve such clusters, based on lectures and seminar problems for graduates. The main part of the book includes more than 200 problems, covering collisions, charge transfer, chemical reactions, condensed systems and their structures, kinetics of cluster growth, excited clusters, the transition from clusters to bulk particles, and small particles, dust, and aerosols in plasmas. Reference data for corresponding parameters of systems under consideration is given in the appendices. Of interest to physicists, astrophysicists, and chemists.
Download or read book Clusters and Small Particles written by Boris M. Smirnov and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: Not merely a discussion of small particles or clusters of atoms, molecules, but also the systems they constitute. The goal is to analyse the properties of such finite aggregates and their behaviour in gases and plasmas, and to investigate processes that involve such clusters, based on lectures and seminar problems for graduates. The main part of the book includes more than 200 problems, covering collisions, charge transfer, chemical reactions, condensed systems and their structures, kinetics of cluster growth, excited clusters, the transition from clusters to bulk particles, and small particles, dust, and aerosols in plasmas. Reference data for corresponding parameters of systems under consideration is given in the appendices. Of interest to physicists, astrophysicists, and chemists.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INTERACTION OF ENERGETIC CHARGED PARTICLES WITH SOLIDS PROCEEDINGS OF A NATO ADVANCED STUDY INSTITUTE SUMMER SCHOOL IN MEMORY OF CAVID ERGINSOY written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modern Many particle Physics Atomic Gases Quantum Dots And Quantum Fluids written by Enrico Lipparini and published by World Scientific. This book was released on 2003-09-26 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: An important part of this book is devoted to the description of homogenous systems, such as electron gas in different dimensions, the quantum well in an intense magnetic field, liquid helium and nuclear matter. However, the most relevant part is dedicated to the study of finite systems: metallic clusters, quantum dots, the condensate of cold and diluted atoms in magnetic traps, helium drops and nuclei. The book focuses on methods of getting good numerical approximations to energies and linear response based on approximations to first-principles Hamiltonians. These methods are illustrated and applied to Bose and Fermi systems at zero and finite temperature.Modern Many-Particle Physics is directed towards students who have taken a conventional course in quantum mechanics and possess a basic understanding of condensed matter phenomena.
Download or read book Physics Briefs written by and published by . This book was released on 1994 with total page 1146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Many body Theory of Molecules Clusters and Condensed Phases written by Norman Henry March and published by World Scientific. This book was released on 2010 with total page 913 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive review of seminal as well as recent results in the theory of condensed phases, including liquid metals, quantum liquids and Wigner crystals, along with selected applications, especially in the physical chemistry of molecules and clusters. A large part of this work is dedicated to The Thomasndash;Fermi semiclassical approximation for molecules and condensed phases, and its extension to inhomogeneous electron liquids and liquid metals. Correlation effects in quantum liquids and Wigner crystallization are other areas of focus of this work, with an emphasis towards the effect of low dimensionality and magnetic fields. The volume is a collection of reprints by N H March and collaborators over five decades.
Download or read book Physics and Chemistry of Metal Cluster Compounds written by L.J. de Jongh and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: On Friday, February 20, 1980, I had the pleasure to be present at the inaugural lecture of my colleague Jan Reedijk, who had just been named at the Chair of Inorganic Chemistry of Leiden University. According to tradition, the ceremony took place in the impressive Hall of the old University Academy Building. In the course of his lecture, Jan mentioned a number of recent developments in chemistry which had struck him as particularly important or interesting. Among those was the synthesis of large metal cluster compounds, and, to my luck, he showed a slide ofthe molecular structure of [PtI9(C)b]4-. (To my luck, since at traditional Leiden University it is quite unusual to show slides at such ceremonies.) This constituted my first acquaintance with this exciting new class of materials. I became immediately fascinated by this molecule, partly because of the esthetic beauty of its fivefold symmetry, partly because as a physicist it struck me that it could be visualized as an "embryonically small" metal particle, embedded in a shell of CO ligands.
