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Author: Hongyan Jiang Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
Hydrogen atoms interactions with single crystal surfaces are the simplest processes in surface science, which are of both practical and fundamental interest. Chemical reactions of hydrogen atoms with single crystal surfaces lead to adsorption. Despite the fact that it has been studied for decades, the dynamics of hydrogen atom adsorption is still not fully understood. Adsorption involves the impinging hydrogen atom losing its initial translational energy and dissipating the energy of the chemical bond formed with the surface. How hydrogen atoms dissipate their initial translational energy t...
Author: Hongyan Jiang Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
Hydrogen atoms interactions with single crystal surfaces are the simplest processes in surface science, which are of both practical and fundamental interest. Chemical reactions of hydrogen atoms with single crystal surfaces lead to adsorption. Despite the fact that it has been studied for decades, the dynamics of hydrogen atom adsorption is still not fully understood. Adsorption involves the impinging hydrogen atom losing its initial translational energy and dissipating the energy of the chemical bond formed with the surface. How hydrogen atoms dissipate their initial translational energy t...
Author: Ricardo Diez Muino Publisher: Springer Science & Business Media ISBN: 3642329551 Category : Science Languages : en Pages : 439
Book Description
This book gives a representative survey of the state of the art of research on gas-surface interactions. It provides an overview of the current understanding of gas surface dynamics and, in particular, of the reactive and non-reactive processes of atoms and small molecules at surfaces. Leading scientists in the field, both from the theoretical and the experimental sides, write in this book about their most recent advances. Surface science grew as an interdisciplinary research area over the last decades, mostly because of new experimental technologies (ultra-high vacuum, for instance), as well as because of a novel paradigm, the ‘surface science’ approach. The book describes the second transformation which is now taking place pushed by the availability of powerful quantum-mechanical theoretical methods implemented numerically. In the book, experiment and theory progress hand in hand with an unprecedented degree of accuracy and control. The book presents how modern surface science targets the atomic-level understanding of physical and chemical processes at surfaces, with particular emphasis on dynamical aspects. This book is a reference in the field.
Author: Nils Hertl Publisher: ISBN: Category : Languages : en Pages :
Book Description
When a hydrogen atom collides with a surface it may either scatter or stick to the surface, depending on the energy loss the particle experiences during collision. It is established that non-adiabatic effects in form of electronic excitation dominate the energy transfer between H atom and metal surfaces. This work addresses the question whether the scattering dynamics and the associated energy transfer depend on the structural and electronic properties of the underlying surface. In order to answer this question, I performed molecular dynamics simulations with electronic friction describing ...
Author: Svenja Maria Janke Publisher: ISBN: Category : Languages : en Pages : 179
Book Description
I have constructed a full-dimensional potential energy surface (PES) for a H atom interacting with a Au(111) surface by fitting the analytic form of the Effective Medium Theory to density functional theory (DFT) energies. The fit used energies of the H-Au system with the Au atoms at their relaxed lattice positions as well as configurations with the Au atoms displaced from these positions. The procedure provides an accurate treatment for displacements of Au atoms and compares well to DFT energies for scattering of H atoms obtained from ab initio molecular dynamics (AIMD). In adiabatic molecu...
Author: Giorgio Benedek Publisher: Springer ISBN: 3662564432 Category : Science Languages : en Pages : 625
Book Description
Experimental advances in helium atom scattering spectroscopy over the last forty years have allowed the measurement of surface phonon dispersion curves of more than 200 different crystal surfaces and overlayers of insulators, semiconductors and metals. The first part of the book presents, at a tutorial level, the fundamental concepts and methods in surface lattice dynamics, and the theory of atom-surface interaction and inelastic scattering in their various approximations, up to the recent electron-phonon theory of helium atom scattering from conducting surfaces. The second part of the book, after introducing the experimentalist to He-atom spectrometers and the rich phenomenology of helium atom scattering from corrugated surfaces, illustrates the most significant experimental results on the surface phonon dispersion curves of various classes of insulators, semiconductors, metals, layered crystals, topological insulators, complex surfaces, adsorbates, ultra-thin films and clusters. The great potential of helium atom scattering for the study of atomic scale diffusion, THz surface collective excitations, including acoustic surface plasmons, and the future prospects of helium atom scattering are presented in the concluding chapters. The book will be valuable reading for all researchers and graduate students interested in dynamical processes at surfaces.
Author: E. Hulpke Publisher: Springer Science & Business Media ISBN: 3662027747 Category : Science Languages : en Pages : 331
Book Description
High resolution helium atom scattering can be applied to study a number of interesting properties of solid surfaces with great sensitivity and accuracy. This book treats in detail experimental and theoretical aspects ofthis method as well as all current applications in surface science. The individual chapters - all written by experts in the field - are devoted to the investigation of surface structure, defect shapes and concentrations, the interaction potential, collective and localized surface vibrations at low energies, phase transitions and surface diffusion. Over the past decade helium atom scattering has gained widespread recognitionwithin the surface science community. Points in its favour are comprehensiveunderstanding of the scattering theory and the availability of well-tested approximation to the rigorous theory. This book will be invaluable to surface scientists wishing to make an informed judgement on the actual and potential capabilities of this technique and its results.
Author: J.S.S. Briggs Publisher: Springer Science & Business Media ISBN: 1468455443 Category : Science Languages : en Pages : 688
Book Description
This volume contains the lectures presented at the NATO Advanced study Institute "Fundamental Processes of Atomic Dynamics" held in Maratea. Italy from September 20th to October 2nd 1987. The institute and this volume were conceived as a natural complement to previous institutes held in Maratea (1982) and in Santa Flavia (1984. ) whose proceedings are to be found in NATO ASI Series B vol. 103 and 134 respectively. The subject matter of these institutes was the study of the funda mental processes occurring in the interactions of atoms with photons. electrons and heavy-ions. The aim has been to unify these processes in a coherent experimen tal and theoretical approach. The present volume brings this approach up to date and contains in addition. for contrast and variety. a description of similar dynamical processes in the study of clusters and surfaces. The institute was opened with a lecture by Joe Macek in which he summarised the current status of atomic collision research. propounded the philosophy of a unified approach to structure, fragmentation and collision and posed the outstanding questions in the field. This lecture forms the introduction to this volume. The subject matter was divided into experiment and theory with the lectures inter-linked so that the one could re-inforce the other. The whole of the theoretical part of the institute was organised by Ugo Fano as an on-going symposium.
Author: Ilya Prigogine Publisher: John Wiley & Sons ISBN: 0470142073 Category : Science Languages : en Pages : 447
Book Description
The study of surfaces has experienced dramatic growth over the past decade. Now, the editors of the internationally celebrated series Advances in Chemical Physics have brought together in this self-contained, special topic volume contributions from leading researchers in the field treating some of the most crucial aspects of the experimental and theoretical study of surfaces. This work delves into such core issues as: * Kinetics and dynamics of hydrogen adsorption on silicon surfaces. * Potential energy surfaces of transition- metal-catalyzed chemical reactions. * High-resolution helium atom scattering as a proof of surface vibrations. * Ordering and phase transitions in adsorbed monolayers of diatomic molecules. * The influence of dimensionality on static and dynamic properties of a system. * New applications to fields as varied as catalysts and the passage of molecules through membranes. This valuable resource provides important insights into the current state of knowledge about surface properties. Prigogine and Rice's latest work will stimulate the imagination and motivate the exploration of other aspects of this fascinating subject.
Author: Hongyan Jiang
Author: Hongyan Jiang
Author: Ricardo Diez Muino
Author: Nils Hertl
Author: Svenja Maria Janke
Author: Giorgio Benedek
Author: E. Hulpke
Author: J.S.S. Briggs
Author: Ilya Prigogine
Author: 
Author: A. Pullman