Download or read book Determination of Surface Structure by Leed written by P.M. Marcus and published by Springer. This book was released on 1984 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Structure Determination by LEED and X rays written by Wolfgang Moritz and published by Cambridge University Press. This book was released on 2022-06-30 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: This timely text covers the theory and practice of surface and nanostructure determination by low-energy electron diffraction (LEED) and surface X-ray diffraction (SXRD): it is the first book on such quantitative structure analysis in over 30 years. It provides a detailed description of the theory, including cutting-edge developments and tested experimental methods. The focus is on quantitative techniques, while the qualitative interpretation of the LEED pattern without quantitative I(V) analysis is also included. Topics covered include the future study of nanoparticles, quasicrystals, thermal parameters, disorder and modulations of surfaces with LEED, with introductory sections enabling the non-specialist to follow all the concepts and applications discussed. With numerous colour figures throughout, this text is ideal for undergraduate and graduate students and researchers, whether experimentalists or theorists, in the fields of surface science, nanoscience and related technologies. It can serve as a textbook for graduate-level courses of one or two semesters.
Download or read book Determination of Surface Structure by LEED written by Paul M. Marcus and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Structure Determination by LEED and X rays written by Wolfgang Moritz and published by . This book was released on 2022 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book is aimed at undergraduate and graduate students as well as more senior researchers, whether experimentalists or theorists, in the fields of surface science, nanoscience and related technologies. Its introductory sections will enable the non-specialist to follow the concepts and applications of the methods described in the book. The advanced researcher will also find much valuable background information and detailed explanations of the various applications of the methods presented in the text. The book can serve as textbook for graduate-level courses of one or two semesters. It covers the theory and practice of surface and nanostructure determination by low-energy electron diffraction (LEED) and surface X-ray diffraction (SXRD). It is intended to provide a detailed description of the theory including new developments and tested experimental methods, such as for nanoparticles, quasicrystals, thermal parameters, disorder and modulated structures in LEED, and direct methods in SXRD. The focus is on quantitative surface structure determination, while a detailed discussion of the qualitative interpretation of the LEED pattern without quantitative I(V) analysis is also included"--
Download or read book Low Energy Electron Diffraction written by Michel A. VanHove and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface crystallography plays the same fundamental role in surface science which bulk crystallography has played so successfully in solid-state physics and chemistry. The atomic-scale structure is one of the most important aspects in the understanding of the behavior of surfaces in such widely diverse fields as heterogeneous catalysis, microelectronics, adhesion, lubrication, cor rosion, coatings, and solid-solid and solid-liquid interfaces. Low-Energy Electron Diffraction or LEED has become the prime tech nique used to determine atomic locations at surfaces. On one hand, LEED has yielded the most numerous and complete structural results to date (almost 200 structures), while on the other, LEED has been regarded as the "technique to beat" by a variety of other surface crystallographic methods, such as photoemission, SEXAFS, ion scattering and atomic diffraction. Although these other approaches have had impressive successes, LEED has remained the most productive technique and has shown the most versatility of application: from adsorbed rare gases, to reconstructed surfaces of sem iconductors and metals, to molecules adsorbed on metals. However, these statements should not be viewed as excessively dogmatic since all surface sensitive techniques retain untapped potentials that will undoubtedly be explored and exploited. Moreover, surface science remains a multi-technique endeavor. In particular, LEED never has been and never will be self sufficient. LEED has evolved considerably and, in fact, has reached a watershed.
Download or read book Surface Structure Determination by Patterson Inversion of Multi Incidence Leed IV Curves written by King-Man Simon Ma and published by . This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modern Techniques of Surface Science written by D. P. Woodruff and published by Cambridge University Press. This book was released on 1994-03-03 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt: Revised and expanded second edition of the standard work on new techniques for studying solid surfaces.
Download or read book Surface Structure Determination by Patterson Inversion of Multi incidence Leed IV curves written by King-man Ma (Simon) and published by . This book was released on 2001 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extending the Range of Low Energy Electron Diffraction LEED Surface Structure Determination written by David Franklin Ogletree and published by . This book was released on 1986 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Structure of Surfaces written by M.A. Van Hove and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Low Energy Electron Diffraction written by J. B. Pendry and published by . This book was released on 1974 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Low Energy Electron Diffraction LEED Determination of Surface Structure Applied to Ni 110 NO and to the Martensitic Alloy Fe 33 Ni 111 written by Zeyuan Fan and published by . This book was released on 1991 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book DETERMINE THE ATOMIC STRUCTURE written by Wai-Kan Tsang and published by Open Dissertation Press. This book was released on 2017-01-27 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Determine the Atomic Structure of a Surface With Mixed Structure Phases by Using LEED Patterson Function" by Wai-kan, Tsang, 曾衛勤, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of thesis entitled DETERMINE THE ATOMIC STRUCTURE OF A SURFACE WITH MIXED STRUCTURE PHASES BY USING LEED PATTERSON FUNCTION Submitted by Tsang, Wai Kan for the degree of Master of Philosophy at The University of Hong Kong in November 2004 Low-Energy Electron Diffraction (LEED) is widely used to determine the atomic structure of a surface. However, for surfaces with mixed structure phases, LEED cannot provide direct evidence for the mixture surface model. It is also very difficult and time consuming to obtain promising result using model guessing. Instead, the recent discovered technique, the Patterson Function calculated from LEED I-V Curves at multiple incident angles, can serve as a tool for surface structure model construction. By comparing the Patterson Function from experimental LEED I-V Curves and that from calculated LEED I-V Curves, the surface model proposed can be fine-tuned. In this work, GaN grown on a clean (33)SiC surface was used to obtain experimental LEED I-V Curves. From its corresponding Patterson Function, Ga(top)/GaN surface cubic structure for the sample crystal were proposed by observing the spot positions on the Patterson Function Map. It was found that the Patterson Function calculated from theoretical LEED I-V Curves for pure Ga(top)/GaN surface structure shows little similarity with that calculatd from experimental LEED I-V Curves. And yet, the Patterson Function calculated from theoretical LEED I-V Curves for mixture surface structure of Ga(top)/GaN and GaN gives excellent similarity. The Patterson Functions calculated from the theoretical LEED I-V Curves at different incident angles were then investigated. It was found that the trend of ratio between relative spot intensity of the spot from Ga-Ga pairs and that from Ga-N pairs P in the experimental Patterson Function with the EXP increase in polar incident angles is much greater than its counterpart trend P in the SIM theoretical Patterson Function. This result suggests that the mixture surface model is not complete. We then proposed that, the disorder layer on top of Ga(top)/GaN surface is thicker than that on top of GaN surface. LEED I-V Curves for the modified model were recalculated so that the Patterson Functions were obtained. We demonstrated that, with the correct model proposed, P has similar value comparing with P and area ratio of two surface SIM EXP structure Ga(top)/GaN and GaN can be suggested. DOI: 10.5353/th_b3049711 Subjects: Surfaces (Physics) Atomic structure Low energy electron diffraction Patterson function
Download or read book International Seminar on Surface Structure Determination by LEED and Other Methods written by and published by . This book was released on 1985 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structure Of Surfaces Iv The Proceedings Of The 4th International Conference On The Structure Of Surfaces written by X D Xie and published by World Scientific. This book was released on 1994-06-22 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Fourth International Conference on the Structure of Surfaces provides a forum for the report of new results and less the review of the status of surface structure and the relationship between surface and interface structure and physical or chemical properties of interest. Also within the scope of the meeting are novel experimental and theoretical approaches for the determination of surface and interface structures, computer simulation of dynamic processes and new developments in instrumentation.
Download or read book Extending the Range of Low Energy Electron Diffraction LEED Surface Structure Determination written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: LEED multiple scattering theory is briefly summarized, and aspects of electron scattering with particular significance to experimental measurements such as electron beam coherence, instrument response and phonon scattering are analyzed. Diffuse LEED experiments are discussed. New techniques that enhance the power of LEED are described, including a real-time video image digitizer applied to LEED intensity measurements, along with computer programs to generate I-V curves. The first electron counting LEED detector using a ''wedge and strip'' position sensitive anode and digital electronics is described. This instrument uses picoampere incident beam currents, and its sensitivity is limited only by statistics and counting times. Structural results on new classes of surface systems are presented. The structure of the c(4 x 2) phase of carbon monoxide adsorbed on Pt(111) has been determined, showing that carbon monoxide molecules adsorb in both top and bridge sites, 1.85 +- 0.10 A and 1.55 +- 0.10 A above the metal surface, respectively. The structure of an incommensurate graphite overlayer on Pt(111) is analyzed. The graphite layer is 3.70 +- 0.05 A above the metal surface, with intercalated carbon atoms located 1.25 +- 0.10 A above hollow sites supporting it. The (2.sqrt. 3 x 4)-rectangular phase of benzene and carbon monoxide coadsorbed on Pt(111) is analyzed. Benzene molecules adsorb in bridge sites parallel to and 2.10 +- 0.10 A above the surface. The carbon ring is expanded, with an average C-C bond length of 1.72 +- 0.15 A. The carbon monoxide molecules also adsorb in bridge sites. The structure of the (.sqrt. 3 x .sqrt. 3) reconstruction on the (111) face of the .cap alpha.-CuAl alloy has been determined.
Download or read book The Structure of Surfaces II written by Johannes F. van der Veen and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt:
