Author: Jacques SchultzPublisher:
ISBN:
Category :
Languages : fr
Pages : 42
Book Description
Application de la diffraction des électrons lents à l'étude des surfaces
Author: Jacques SchultzMéthodes de Perturbations Appliquées À la Diffraction Des Électrons Lents
Author: Gilbert AlbinetEtude Théorique Et Expérimentale de la Diffraction Des Électrons Lents Pour la Cristallographie Des Surfaces
Author: Robert BaudoingApplication de la diffraction des électrons lents à l'étude des particules adsorbées
Author: Robert DucrosReflection High-Energy Electron Diffraction and Reflection Electron Imaging of Surfaces
Author: P.K. LarsenPublisher: Springer Science & Business Media
ISBN: 146845580X
Category : Science
Languages : en
Pages : 526
Book Description
This volume contains the papers presented at the NATO Advanced Research Workshop in "Reflection High Energy Electron Diffraction and Reflection Electron Imaging of Surfaces" held at the Koningshof conference center, Veldhoven, the Netherlands, June 15-19, 1987. The main topics of the workshop, Reflection High Energy Electron Diffraction (RHEED) and Reflection Electron Microscopy (REM), have a common basis in the diffraction processes which high energy electrons undergo when they interact with solid surfaces at grazing angles. However, while REM is a new technique developed on the basis of recent advances in transmission electron microscopy, RHEED is an old method in surface crystallography going back to the discovery of electron diffraction in 1927 by Davisson and Germer. Until the development of ultra high vacuum techniques in the 1960's made instruments using slow electrons more accessable, RHEED was the dominating electron diffraction technique. Since then and until recently the method of Low Energy Electron Diffraction (LEED) largely surpassed RHEED in popularity in surface studies. The two methods are closely related of course, each with its own specific advantages. The grazing angle geometry of RHEED has now become a very useful feature because this makes it ideally suited for combination with the thin growth technique of Molecular Beam Epitaxy (MBE). This combination allows in-situ studies of freshly grown and even growing surfaces, opening up new areas of research of both fundamental and technological importance.
Surface Crystallography
Author: L. J. ClarkePublisher: John Wiley & Sons
ISBN:
Category : Science
Languages : en
Pages : 450
Book Description
Low Energy Electron Diffraction (LEED) is one of the most commonly used techniques for crystal surface characterization at the atomic level. This book is designed to provide all the essential background information necessary to carry out surface crystallography using LEED.
Développement d'une optique à haute tension pour l'étude des surfaces par électrons lents
Author: Jean-Claude Dupuy (spécialiste en électronique).)Publisher:
ISBN:
Category :
Languages : fr
Pages : 160
Book Description
ON A REALISE UN MICROSCOPE ELECTRONIQUE A MIROIR, HT POUR L'ETUDE DES SURFACES PAR DES ELECTRONS LENTS. ON ETUDIE L'OBJECTIF, LE CONTRASTE, LA VARIATION DU TRAVAIL DE SORTIE, LA REALISATION DU SYSTEME ULTRA-VIDE, LA DIFFRACTION DES ELECTRONS LENTS. ON PROPOSE 3 UTILISATIONS DES OPTIQUES HT: INTERPRETATION DU CONTRASTE MIROIR; UTILISATION DE L'OBJECTIF DE JOHANSSON EN FAISCEAU CONVERGENT; DIFFRACTION D'ELECTRONS LENTS. APPLICATION A L'ETUDE DE L'ADSORPTION DE L'OXYGENE SUR LE NICKEL (110)
Etude par diffraction d'électrons lents des phonons de surface du graphite
Author: Gilbert AlbinetLow-Energy Electron Diffraction
Author: Michel A. VanHovePublisher: Springer Science & Business Media
ISBN: 3642827217
Category : Science
Languages : en
Pages : 617
Book Description
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.
Author: Raymond Zouckermann