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Download or read book Investigations of the Dynamics and Growth of Surfaces and Ultra Thin Films by Helium Atom Scattering written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (684 download)
Download or read book Investigations of the Dynamics and Growth of Insulator Films by High Resolution Helium Atom Scattering. Final Report, May 1, 1985--April 30, 1997 written by and published by . This book was released on 1997 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the twelve years of this grant from the U.S. Department of Energy, DE-FG05-85ER45208, the over-reaching aims of this work have been to explore and to attempt to understand the fundamental physics and chemistry of surfaces and interfaces. The instrument we have employed m in this work is high-resolution helium atom scattering (HAS) which we have become even more convinced is an exceptionally powerful and useful tool for surface science. One can follow the evolution of the development and progress of the experiments that we have carried out by the evolution of the proposal titles for each of the four three-year periods. At first, m in 1985-1988, the main objective of this grant was to construct the HAS instrument so that we could begin work on the surface vibrational dynamics of crystalline materials; the title was {open_quotes}Helium Atom-Surface Scattering Apparatus for Studies of Crystalline Surface Dynamics{close_quotes}. Then, as we became more interested m in the growth of films and interfaces the title m in 1988-1991 became {open_quotes}Helium Atom Surface Spectroscopy: Surface Lattice Dynamics of Insulators, Metal and Metal Overlayers{close_quotes}. In 1991-1994, we headed even more m in this direction, and also recognized that we should focus more on insulator materials as very few techniques other than helium atom scattering could be applied to insulators without causing surface damage. Thus, the proposal title became {open_quotes}Helium Atom-Surface Scattering: Surface Dynamics of Insulators, Overlayers and Crystal Growth{close_quotes}. M in the final period of this grant the title ended up {open_quotes}Investigations of the Dynamics and Growth of Insulator Films by High Resolution Helium Atom Scattering{close_quotes} m in 1994-1997. The list of accomplishments briefly discussed in this report are: tests of the shell model; multiphoton scattering; physisorbed monolayer films; other surface phase transitions; and surface magnetic effects.
Author : E. Hulpke
Publisher : Springer Science & Business Media
ISBN 13 : 3662027747
Total Pages : 331 pages
Book Rating : 4.6/5 (62 download)
Download or read book Helium Atom Scattering from Surfaces written by E. Hulpke and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : Barbara A. J. Lechner
Publisher : Springer Science & Business
ISBN 13 : 3319011804
Total Pages : 183 pages
Book Rating : 4.3/5 (19 download)
Download or read book Studying Complex Surface Dynamical Systems Using Helium-3 Spin-Echo Spectroscopy written by Barbara A. J. Lechner and published by Springer Science & Business. This book was released on 2014-04-23 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical reactions and growth processes on surfaces depend on the diffusion and re-orientation of the adsorbate molecules. A fundamental understanding of the forces guiding surface motion is thus of utmost importance for the advancement of many fields of science and technology. To date, our understanding of the principles underlying surface dynamics remains extremely limited, due to the difficulties involved in measuring these processes experimentally. The helium-3 spin-echo (HeSE) technique is uniquely capable of probing such surface dynamical phenomena. The present thesis extends the field of application of HeSE from atomic and small molecular systems to more complex systems. Improvements to the supersonic helium beam source, a key component of the spectrometer, as well as a detailed investigation of a range of five-membered aromatic adsorbate species are presented. The thesis provides a comprehensive description of many aspects of the HeSE method - instrumentation, measurement and data analysis - and as such offers a valuable introduction for newcomers to the field.
Author : E. Hulpke
Publisher :
ISBN 13 : 9783662027752
Total Pages : 342 pages
Book Rating : 4.0/5 (277 download)
Download or read book Helium Atom Scattering from Surfaces written by E. Hulpke and published by . This book was released on 2014-01-15 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Lyudmila Goncharova
Publisher :
ISBN 13 :
Total Pages : 322 pages
Book Rating : 4.:/5 (556 download)
Download or read book Helium Atom Scattering Investigations of Surface Structure Evolution and Vibrational Dynamics During Deposition of Phosphine and Tin on Cu (001) Surfaces written by Lyudmila Goncharova and published by . This book was released on 2003 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Defense
Publisher :
ISBN 13 :
Total Pages : 1040 pages
Book Rating : 4.0/5 (11 download)
Download or read book Department of Defense appropriations for 2001 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Defense and published by . This book was released on 2004 with total page 1040 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Giorgio Benedek
Publisher : Springer
ISBN 13 : 3662564432
Total Pages : 625 pages
Book Rating : 4.6/5 (625 download)
Download or read book Atomic Scale Dynamics at Surfaces written by Giorgio Benedek and published by Springer. This book was released on 2018-12-28 with total page 625 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 :
Publisher :
ISBN 13 :
Total Pages : 1046 pages
Book Rating : 4.F/5 ( download)
Download or read book 108-2 Hearings: Department of Defense Appropriations For 2001, Part 3, February 16, 2000 * written by and published by . This book was released on 2004 with total page 1046 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Defense
Publisher :
ISBN 13 :
Total Pages : 1030 pages
Book Rating : 4.:/5 (8 download)
Download or read book Department of Defense Appropriations for 2001: Readiness of United States forces written by United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Defense and published by . This book was released on 2004 with total page 1030 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Congress. House. Committee on Appropriations. Subcommittee on Foreign Operations, Export Financing, and Related Programs
Publisher :
ISBN 13 :
Total Pages : 820 pages
Book Rating : 4.3/5 ( download)
Download or read book Foreign Operations, Export Financing, and Related Programs Appropriations for 2001 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Foreign Operations, Export Financing, and Related Programs and published by . This book was released on 2000 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Nadav Avidor
Publisher :
ISBN 13 :
Total Pages : 116 pages
Book Rating : 4.:/5 (951 download)
Download or read book Helium Atom Scattering: Instrumentation Development and Structural Studies of Thin-films of Water written by Nadav Avidor and published by . This book was released on 2014 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (925 download)
Download or read book He Atom Surface Scattering written by and published by . This book was released on 1992 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Investigations have focused primarily on surface structure and dynamics of ionic insulators, epitaxial growth onto alkali halide crystals and multiphoton studies. The surface dynamics of RbCl has been re-examined. We have developed a simple force constant model which provides insight into the dynamics of KBr overlayers on NaCl(001), a system with a large lattice mismatch. The KBr/NaCl(001) results are compared to Na/Cu(001) and NaCl/Ge(001). We have completed epitaxial growth experiments for KBr onto RbCl(001). Slab dynamics calculations using a shell model for this system with very small lattice mismatch are being carried out in collaboration with Professor Manson of Clemson University and with Professor Schroeder in Regensburg, Germany. Extensive experiments on multiphoton scattering of helium atoms onto NaCl and, particularly, LiF have been carried out and the theory has been developed to a rather advanced stage by Professor Manson. This work will permit the extraction of more information from time-of-flight spectra. It is shown that the theoretical model provides a very good description of the multiphoton scattering from organic films. Work has started on self-assembling organic films on gold (alkyl thiols/Au(111)). We have begun to prepare and characterize the gold crystal; one of the group members has spent two weeks at the Oak Ridge National Laboratory learning the proper Au(111) preparation techniques. One of our students has carried out neutron scattering experiments on NiO, measuring both bulk phonon and magnon dispersion curves.
Author : Ilya Prigogine
Publisher : John Wiley & Sons
ISBN 13 : 0470142073
Total Pages : 447 pages
Book Rating : 4.4/5 (71 download)
Download or read book Surface Properties, Volume 95 written by Ilya Prigogine and published by John Wiley & Sons. This book was released on 2009-09-09 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : K. D. Gibson
Publisher :
ISBN 13 :
Total Pages : 34 pages
Book Rating : 4.:/5 (227 download)
Download or read book Helium Scattering Studies of the Surface Structure and Dynamics of Rare Gas Crystals written by K. D. Gibson and published by . This book was released on 1985 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report reviews experiments involving He scattering from the surfaces of ordered rare gas overlayers physisorbed on Ag(111). The series of rare gases studied were Ar, Kr, and Xe. The measurements were performed on thin film structures which were grown on a layer-by-layer basis, from monolayer to thick film, in order to study how the surface properties changed with increasing distance from the substrate. Three types of experiments are discussed; elastic diffraction, selective adsorption, and inelastic single phonon scattering by angle-resolved time-of-flight. These experiments, taken together, provide a broad overview of the static and dynamic surface properties of rare gas overlayers. They also provide information about the forces which govern the adatom-adatom and adatom-substrate interactions. Originator supplied keywords include: Surface phonon dispersion relations; Helium diffraction; Selective adsorption; Rare gas interaction potentials; Thin film dynamics; Gas-surface energy exchange; Wetting.
Author :
Publisher :
ISBN 13 :
Total Pages : 704 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Publisher :
ISBN 13 :
Total Pages : 2470 pages
Book Rating : 4.:/5 (318 download)
Download or read book Chemical Abstracts written by and published by . This book was released on 1991 with total page 2470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
