Desorption indueced by electronic transitions

Indueced transitions electronic

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The most general characteristics and aspects of this phenomenon are systematized. The method is nonperturbative and spans the limits of weak to strong substrate–adsorbate interactions. Univ wisconsin,dept phys,madison,wi 53706. An attempt is made to provide a physical basis for DIET (desorption induced by electronic transitions) at metal surfaces. 106,.

As a result of decay processes after an electronic excitation of surface layers by desorption indueced by electronic transitions synchrotron. It is Desorption Induced by Electronic Transitions. Search Results: Records 1-12 displayed on this page of 12 1. - DIET and the Electronic Structure of Chemisorbed Molecules and Physisorbed Rare Gases. desorption induced by an electronic transition. indueced Desorption induced by electronic transition (DIET) has been observed for some insulating solids and for a variety of adsorbate-metal systems 1,2.

Desorption Induced by Electronic Transitions desorption indueced by electronic transitions (DIETApril 1997 • Ambleside, The English Lake District, UK. In analogy to electron impact or indueced photon-induced dissociation of molecules, electronic excitation of adsorbate complexes leads to desorption of ions and neutrals. An analysis is made of relations between DIET and crystallographic and band structure of the. An experiment on STM-induced CO desorption from Cu(111) 4 showed. See more videos for Desorption Induced By Electronic Transitions. How is Desorption Induced by Electronic Transitions abbreviated?

For phonon-mediated processes isotope effects are expected to be very small ( 10 ), consistent with the absence of an desorption indueced by electronic transitions isotope effect for the phonon-mediated desorption reaction. Motivated by controversy concerning the origins of Na vapor in the atmospheres of Mercury and the Moon, we have studied the desorption induced by electronic transitions (DIET) of Na adsorbed on. We propose the possibility of relaxing several approximations frequently adopted in theoretical studies of desorption induced by electronic transitions. The phenomenon of desorption induced by electronic transitions (DIET) includes desorption indueced by electronic transitions both electron stimulated desorption (ESD) and photon stimulated desorption (PSD) 4. We consider two qualitatively different model Hamiltonians representing the limits of desorption induced by a single and by multiple electronic transitions and at the same desorption indueced by electronic transitions time the limits of resonance-mediated and direct nuclear dynamics. Looking for abbreviations of indueced desorption indueced by electronic transitions DIET?

A new mechanism is introduced to describe desorption from surfaces under conditions of strong electronic excitation. desorption indueced by electronic transitions The dynamics of desorption induced by electronic transitions is studied using a recently formulated quantum mechanical method J. DIET is defined as Desorption Induced by Electronic Transitions somewhat frequently. These proceedings are the result of the third international workshop on Desorption Induced by Electronic Transitions, DIET III, which took place on Shelter Island, NY, May.

The reader is referred to the review of Guo, Saalfrank and Seideman 2 and also to our recent review 3 for an extensive overview desorption indueced by electronic transitions of concepts and theoretical models employed in the field of photodesorption. Desorption Induced by Electronic Transitions DIET V: Proceedings of indueced the Fifth International Workshop, Taos, NM, USA, April 1–4, 1992 (Springer Series in Surface Sciences (31)) Softcover reprint of the original 1st ed. Desorption Induced by Electronic Transitions, DIET III: Proceedings of the Third International Workshop, Shelter Island, New desorption indueced by electronic transitions York, May 20–22, 1987 (Springer Series in Surface Sciences (13), Band 13) | Stulen, Richard H. As in previous volumes, these advances are desorption indueced by electronic transitions presented as the proceedings of the International Workshop on Desorption Induced by Electronic Transitions; the fifth workshop (DIET V) was held in Taos, New Mexico, April 1-4. For this purpose, a theoretical description for DIET is given from a microscopic point of view.

19;68(25) :. In selective detection of the desorbing NO molecules the latter case, two main factors may be desorption indueced by electronic transitions considered was achieved by (1+1)REMPI via the to dominate the angular distribution: the frustrated A2S+÷X2Ptransition. Desorption induced by multiple electronic transitions. Volume 390, Issues 1–3,. This volume in the Springer Series on Surface Sciences presents a recent account of advances in the ever-broadening field of electron-and photon-stimulated sur face processes.

, Knotek, Michael L. desorption indueced by electronic transitions The phenomena discussed here are neither thermal. Click and Collect from your local Waterstones or get FREE desorption indueced by electronic transitions UK delivery on orders over £20. desorption indueced by electronic transitions Electronic transitions to anti-bonding modes result in the desorption of neutrals, excited state and ionic species. An isotope effect desorption indueced by electronic transitions desorption indueced by electronic transitions of similar magnitude has been observed for electron-stimulated desorption of O − ions from tungsten, explained by single electronic transitions.

Tolk, nh, bell tel labs inc,murray hill,nj 07974. | ISBN:| Kostenloser Versand desorption indueced by electronic transitions für alle Bücher mit Versand und desorption indueced by electronic transitions Verkauf duch Amazon. Desorption induced by multiple electronic transitions Phys Rev Lett.

V-H Desorption Induced by Electronic Transitions at the Surface of Van der Waals Condensates The electronic excitation on the surface of a van der Waals condensate may lead the desorption of neutral and charged molecules, either in the ground state or in excited ones. A survey is presented of the techniques and instruments used in studies of desorption induced by electronic transitions (DIET) that can be stimulated by irradiating a solid surface by electrons (ESD) or photons (PSD). VI-Q Desorption Induced by Electronic Transitions from Cryogenic Surfaces Desorption process of particles from cryogenic surfaces are studied using synchrotron radiation in vacuum ultraviolet region. Get this from a library! Stechel from Waterstones today! DIET stands for Desorption Induced by Electronic Transitions. Gerhard Betz; Peter Varga -- This book is the latest to appear in a series documenting the progress of this exciting field in surface science.

Keywords: Scanning tunneling microscopy; Desorption induced by electronic transitions; Thermal desorption; Br–Si· 1) There is rich literature that describes electron-and photon-stimulated desorption from surfaces 1,2. When repetitive excitations occur within the relaxation time for the adsorbate-surface vibration, desorption indueced by electronic transitions the process of desorption induced by multiple electronic transitions may provide an enhancement of orders of magnitude over a single-excitation mechanism. Desorption of atoms desorption indueced by electronic transitions or molecules desorption indueced by electronic transitions can occur when sufficient energy is available to overcome the potential barrier that forms the surface bond.

Search only for desorption indueced by electronic transitions. The ion desorption efficiency of the different noble metal NPs increased with their corresponding internal-energy transfer (Figure 3), indicating that the thermal-driven desorption (mainly explained by photoabsorption via electronic transitions) might be the key mechanism in the ion-desorption process. However, in the surface case strong competition with the desorptive process occurs. Fundamental Mechanisms of Desorption and Fragmentation Induced by Electronic Transitions at Surfaces. - The Dynamics of O+ Desorption from indueced TiO2.

Buy Desorption Induced by Electronic Transitions DIET desorption indueced by electronic transitions V by Alan R. Desorption Induced by Electronic Transitions DIET V by Alan R. Bombardment of a surface by electrons or photons can cause rupture of surface bonds and desorption from the surface, by inducing transitions to repulsive electronic states. Often this process occurs through thermal indueced routes and the barrier is overcome through vibrational energy, but electronic transitions induced by photons or desorption indueced by electronic transitions particles (typically electrons or ions) can lead to rapid desorption when the atom or molecule is.

The Nature of desorption indueced by electronic transitions Repulsive States and the Role of Nuclear Dynamics in Desorption Induced by Electronic Transitions. Desorption Induced by. Desorption induced by electronic transitions desorption indueced by electronic transitions (DIET) is widely encountered in nature and in the laboratory. ISI Document Delivery No.

A theoretical study of desorption induced by electronic. Desorption Induced by Electronic Transitions DIET IV Proceedings of the Fourth International Workshop, Gloggnitz, Austria, October 2–4, 1989 This edition published in desorption indueced by electronic transitions by Springer, Brand: Springer. Both processes require a primary excitation to a repulsive potential curve, by which conversion of electronic excitation to nuclear motion can occur. To compensate the deple-.

com: Desorption Induced by Electronic Transitions DIET I: Proceedings of the First desorption indueced by electronic transitions International Workshop, Williamsburg, Virginia, USA, May 12-14, 1982. The work contained in this volume is an excellent summary of the current status of the field and should desorption indueced by electronic transitions be a valuable reference text for both "seasoned. As in previous desorption indueced by electronic transitions volumes, these advances are presented as the proceedings of the International Workshop on Desorption Induced by Electronic Transitions; the fifth workshop (DIET V) was held in Taos, New Mexico, April 1-4, 1992. - Theory of Desorption of Neutrals by Temporary Ionization of Physisorbed Species at Metal Surfaces. There is general agreement that ESD involves the direct interaction of the bombarding electron with the adsorbed species. For example, the surfaces of materials in the solar system and the interstellar media are exposed to energetic photons and particles that stimulate desorption processes ( I). Desorption Induced by Electronic Transitions DIET IV : Proceedings of the Fourth International Workshop, Gloggnitz, Austria, October 2-4, 1989. In general, the capture of an electron or hole in a long-lived state results in a Franck–Condon.

DIET - Desorption Induced by Electronic Transitions. multiple electronic transition, DIMET) inducing desorption. The cross sections are atomic in nature and vary from 10/sup -16/ cm/sup 2/ to less than 10/sup -20/ cm/sup 2/. of the 3A2 desorption indueced by electronic transitions electronic ground state and the 3E excited state.

Wilhelm Brenig; Dietrich Menzel -- The second workshop on Desorption Induced by Electronic Transitions (DIET II) took place October 15-17, 1984, in SchloB Elmau, indueced Bavaria. Desorption Induced by Electronic Transitions DIET II : Proceedings of the Second International Workshop, Schloß Elmau, Bavaria, October 15-17, 1984.

Desorption indueced by electronic transitions

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