WorldCat Identities

Jelski, Daniel A.

Overview
Works: 26 works in 31 publications in 1 language and 146 library holdings
Roles: Editor
Classifications: TA418.9.N35, 620.115
Publication Timeline
Key
Publications about  Daniel A Jelski Publications about Daniel A Jelski
Publications by  Daniel A Jelski Publications by Daniel A Jelski
Most widely held works by Daniel A Jelski
Computational studies of new materials by Daniel A Jelski ( Book )
6 editions published in 1999 in English and held by 108 WorldCat member libraries worldwide
This important book is a collection of articles discussing computational studies of new materials. It is intended not only for workers in computational materials science, but also for people with a broader interest in the materials being discussed. The emphasis, therefore, is on the materials, and not primarily on the development of new computational tools. The specific topics covered are: surface-induced optical effects; adsorbates; crystals; semiconductors; clusters; fullerenes; fractals; and liquid helium
Computational studies of new materials II from ultrafast processes and nanostructures to optoelectronics, energy storage and nanomedicine by Thomas F George ( )
1 edition published in 2011 in English and held by 14 WorldCat member libraries worldwide
& Quot;Computational Studies of New Materials" was published by World Scientific in 1999 and edited by Daniel Jelski and Thomas F George. Much has happened during the past decade. Advances have been made on the same materials discussed in the 1999 book, including fullerenes, polymers and nonlinear optical processes in materials, which are presented in this 2010 book. In addition, different materials and topics are comprehensively covered, including nanomedicine, hydrogen storage materials, ultrafast laser processes, magnetization and light-emitting diodes
The Plasmon Dispersion Relation on a Rough Surface: A Simple Approximation ( Book )
1 edition published in 1987 in English and held by 1 WorldCat member library worldwide
This paper is concerned with periodic, laser induced, chemical vapor deposition recently observed experimentally. In order to inquire further into this phenomena, it is first necessary to find a simple means of calculating the plasmon field strength for relatively deep gratings. The Rayleigh hypothesis is assumed, and only p-polarized, normally incident light is considered. A closed form equation for the plasmon field intensity is then derived. Also discussed is the behavior of the plasmon dispersion relation for a shallow grating, but for a complex dielectric constant where the imaginary part is not necessarily small. Keywords: Plasmon dispersion relation; Rough surface; Chemical vapor deposition; Rayleigh hypothesis; Polarized light; Complex dielectric constant
Model of Laser-Induced Deposition on Semiconductors from Liquid Electrolytes ( Book )
1 edition published in 1989 in English and held by 1 WorldCat member library worldwide
A model for laser induced electrolytic deposition on a semiconductor surface is developed. The laser induces two effects in the surface: thermal heating, which results in a thermal potential, and the Dember effect in which excited electrons and holes diffuse at different rates. The model is compared with experiment, and the ring-shaped deposit discovered is reproduced in the calculation. Keywords: Deposition; Semiconductors; Laser induced; Liquid electrolytes; Dember effect; Electrons; Holes
An Inquiry into the Structure of the Si60 Cluster: Analysis of Fragmentation Data ( Book )
1 edition published in 1989 in English and held by 1 WorldCat member library worldwide
A model is proposed to describe the structure of large, silicon clusters. The model is illustrated for the 60-atom cluster. A structure consisting of stacked, naphthalene-like planes is investigated. Computational evidence is given in support of this hypothesis, and it is shown to be consistent with experimental photo fragmentation results
Superconductors with Structured Surfaces. Fields and Currents ( Book )
1 edition published in 1987 in English and held by 1 WorldCat member library worldwide
This paper discusses the behavior of currents and fields along a structured superconductor. First the effect of surface structure on supercurrents is investigated. Then the effect of structure on the critical nucleation field is discussed in two cases, one with the magnetic field parallel to the ripples and the other with the field parallel to the grating wavenumber. In the first case, it is found that the critical field is reduced as a function of grating height, whereas in the latter case it is increased. Finally, the relevance of this work for laser-induced chemistry above a superconducting surface is discussed. The Ginzburg-Landau model is used throughout. Keywords: Superconductor; Structured surface; Supercurrent; External magnetic field; Critical nucleation field; Ginzburg landau theory
Photochemistry at Structured Surfaces: A Classical Electromagnetic Approach ( Book )
1 edition published in 1988 in English and held by 1 WorldCat member library worldwide
This review article discusses several important aspects of photochemistry at structured metallic surfaces. The electromagnetic field above the surface is calculated using the Rayleigh expansion. Conditions under which this expansion is valid and simplifying approximations which make it easier to use are discussed in detail. This formalism is then applied to three different but related phenomena. First, the photodissociation rate of a molecule above a surface is calculated for laser frequencies at or near the surface plasmon resonance. It is found that there is an optimal molecule-surface distance for photodissociation. Then the absorption lineshape of a molecule is considered, where both Fano and Lorentzian lineshapes are found to be distorted as the molecule approaches the surface. Finally, laser-induced periodic deposition is discussed, and a model is developed to describe the growth rate of a cadmium grating
Linear and Nonlinear Optical Properties of Small Silicon Clusters ( Book )
1 edition published in 1990 in English and held by 1 WorldCat member library worldwide
Electronic contributions to the optical properties of small silicon clusters are examined. Geometries and the electronic structures of the clusters are established using the tight-binding model, and linear as well as nonlinear polarizabilities of conjecture for hyperpolarizabilities is shown to be violated in the frequency-degenerate case, which is of practical importance. The nonlinear polarizabilities are found to depend primarily on the symmetry of the cluster and prove to be high for the low symmetry clusters. Possible experiments and applications are discussed. Keywords: Small silicon clusters, Optical properties, Linear and nonlinear, Tight-binding model, One-electron density matrix, Hyperpolarizability. (jes)
Computational studies of new materials ( Book )
1 edition published in 1999 in English and held by 1 WorldCat member library worldwide
Dynamics of Patterned Laser-Induced Chemical Vapor Deposition ( Book )
1 edition published in 1986 in English and held by 1 WorldCat member library worldwide
An expression for the grating growth rate in laser-induced chemical vapor deposition is derived which incorporates the contribution from the plasmon field intensity. It is found that the ultimate grating height is independent of laser intensity, while the grating growth rate is linear in intensity. For the shallow grating case the expression reduces to exponential growth. Also discussed are several possible mechanism which account for the periodic structure
Vibrational relaxation in condensed media : application to a model hamiltonian by Daniel A Jelski ( Book )
1 edition published in 1985 in English and held by 1 WorldCat member library worldwide
Molecular Lifetimes in the Presence of Periodically Roughened Metallic Surfaces ( Book )
1 edition published in 1987 in English and held by 1 WorldCat member library worldwide
The lifetimes of molecules located close to a sinusoidal grating surface are studied within a classical phenomenological model. The contribution of surface roughness to the molecular decay rate is attributed to the discrepancy between the experiments of Rossetti and Brus and the theory of Chance, Prock and Silbey. It is found that surface roughness can either enhance or diminish the flat-surface value for the decay rate depending on the emitting frequency, molecule-surface distance and the molecular orientation. Keywords: Molecular lifetimes, Metallic Surfaces, Periodically Roughened, Molecule-Surface Distance, Molecules Molecular Orientation, Classical Model
Electronic and Structural Properties of Si10 Cluster ( Book )
1 edition published in 1990 in English and held by 1 WorldCat member library worldwide
Possible structures for Si10 cluster are considered using a tight-binding model and drawing on significant work done in the past. It is shown that the tight-binding parametrization, fitted to the bulk, is also valid for smaller systems. This model is found to essentially reproduce other published results, but requires much less effort than ab initio techniques, thus allowing the study of a wide variety of structures and their ions. However, unlike classical force field calculations, it yields information about the electronic structure of clusters. A new geometric structure for Si10 is found, which is not only of lowest energy, but which also matches the experimental photoelectron band gap and explains the experimental reactivity data. Because of the Jahn-Teller effect, the photoelectron spectrum is very sensitive to geometry. Also, ionization of the cluster alters the geometry slightly. Si10 cluster, Electronic properties, Structural properties, Tight-binding model, Silicon, Jahn-teller effect, Ionization. (jg)
Optical (Hyper) Polarizabilities of Small Silicon Clusters ( )
1 edition published in 1990 in English and held by 1 WorldCat member library worldwide
Electronic contributions to the optical (hyper)polarizabilities of small silicon clusters are theoretically determined. Geometries and the electronic structures of the clusters are established using the tight binding model. The nonlinear polarizabilities are found to depend primarily on the symmetry of the cluster and prove to be high for the low-symmetry clusters. Possible experiments and applications are discussed. (jhd)
Comment on Effect on Surface Reconstruction on Stability and Reactivity of Si Clusters, ( )
1 edition published in 1991 in English and held by 1 WorldCat member library worldwide
The structure and properties of medium-size clusters, few tons of atoms, has been a subject of several recent theoretical and experimental studies. In particular, the question of the transition from high-coordinated structures, typical for small clusters, to tetra-coordinated diamond structures, which is the bulk limit, has attracted much interest and created discussions in the literature, 4 although mainly based on theoretical arguments. Kaxiras' contribution to this discussion provides an interesting and well-motivated model for Si33 and Si45 clusters with a tetra-coordinated core and a bulk silicon-like reconstructed surface structure, thus suggesting that the transition region might start already at a cluster size of about 40 atoms. While this may be the case, we want to draw attention to our recent results for Si45 clusters, which suggest that the most stable isomers have still higher coordination numbers (from 4.0 to 4.2) than suggested by Kaxiras (about 3.1)
Theory of Spectroscopy and Dynamics in Laser-Irradiated Adspecies-Surface Systems ( Book )
1 edition published in 1986 in English and held by 1 WorldCat member library worldwide
Recent progress in the theory of spectroscopy and in dynamics laser irradiated adspecies surface systems is discussed. This article is divided into three main sections. First, a first principles approach for describing vibrational excitation and relaxation of a laser excited adatom is presented. A tractable approximation is introduced in order to numerically deal with the long time behavior of the dynamics. In the next section, surface dressed optial Bloch equations are solved for the resonance fluorescence spectrum of a laser driven two level atom near a flat metal surface and also near a rough metal surface modeled by a hemispheroid on a perfectly conducting plane. In the final section, the problem of laser induced period chemical vapor deposition is addressed, and a theoretical analysis of selected aspects of an experiment on the deposition of cadmium onto a silica surface is carried out, where the cadmium is produced by laser-induced dissociation of dimethyl cadmium gas above the surface
Stability and Structure of C12B24N24: A Hybrid Analog of Buckminsterfullerene ( Book )
1 edition published in 1991 in English and held by 1 WorldCat member library worldwide
The results of a study of the substituted buckminsterfullerence C12B24N24 are presented. Computational evidence is given for its stability, the molecular structure is discussed, and a possible synthetic route is proposed. The sixty-vertex, truncated icosahedral cluster system known as buckminsterfullerene has attracted increased attention following recent repairs of its laboratory-scale synthesis. Such large clusters provide a bridge between atomic and macroscopic species, and hence have considerable technological importance--for example, in electrochemistry, ferromagnetism, and superconductivity. Various efforts to add heteroatoms (especially nucleophiles) to the periphery of C60 frameworks have been successful. Smalley and co-workers doped C60 with boron and nitrogen atoms, with mass spectral evidence for C59B, C59N, C58BN, etc. having been obtained. The C58BN cluster is especially intriguing. The isoelectronic relationship between boron-nitrogen and dicarbon molecular fragments is well documented, and is manifested in a variety of ways. For example, the structural chemistry of boron nitride closely parallels that of elemental carbon--hexagonal BN is an analog of graphite, while Beta-BN is isostructural with diamond
MNDO Study of Boron-Nitrogen Analogues of Buckminsterfullerene ( )
1 edition published in 1992 in English and held by 1 WorldCat member library worldwide
An MNDO study of boron-nitrogen analogues of buckminsterfullerene is presented. The relative properties of (Carbon(60)), (Boron carbon), (Nitrogen carbon), (Boron carbon), (Carbon boron nitrogen) and (Boron nitrogen) are studied. The heats of formation of such 60-atom systems from benzene, naphthalene and their BN analogues are compared. It is found that all these hybrids are approximately as stable as buckminsterfullerene. Surprisingly, it is predicted that (Boron nitrogen) will be stable and should be relatively simple to synthesize from borazine
Tight-Binding and Hueckel Models of Molecular Clusters ( Book )
1 edition published in 1990 in English and held by 1 WorldCat member library worldwide
The background of the theory underlying the tight-binding and Huckel models of molecular structure is briefly discussed. A description is then provided for how these methods have been used in cluster research, concentrating first on applications of the tight-binding model to silicon clusters, and then on applications of the Huckel model to metallic clusters. Comments are provided on the relative merits of the two methods. Tight-binding model, Hueckel model, Molecular clusters, Silicon clusters, Metallic clusters. (jg)
Clusters: Link between Molecules and Solids ( Book )
1 edition published in 1987 in English and held by 1 WorldCat member library worldwide
The physics and chemistry of clusters is discussed. First, clusters are compared with molecules, on the one hand, and then with solids on the other. It is found that clusters are an intermediate state, and therefore of special interest. The Huckel model is elucidated since this is the simplest of possible semi-empirical methods, and since it is readily applied to clusters. Two kinds of clusters are discussed in greater detail: alkali-metal clusters, because they are the obvious candidate for application of the Huckel model, and Buckminsterfullerene, which is a C60 cluster arranged in a soccer ball geometry. Keywords: Clusters; Molecules, Solids, Link, Huckel model, Carbon
 
moreShow More Titles
fewerShow Fewer Titles
Audience Level
0
Audience Level
1
  Kids General Special  
Audience level: 0.72 (from 0.00 for Electronic ... to 0.88 for Computatio ...)
Languages
English (25)
Covers