Desorption Induced by Electronic Transitions DIET IV: by J. W. Gadzuk (auth.), Dr. Gerhard Betz, Dr. Peter Varga

By J. W. Gadzuk (auth.), Dr. Gerhard Betz, Dr. Peter Varga (eds.)

This e-book is the newest to seem in a chain documenting the growth of this fascinating box in floor technological know-how. It provides contemporary effects and stories of the swiftly starting to be box of interplay of debris and lasers with strong surfaces resulting in excitation, ionisation and desorption. the most emphasis is at the microscopic figuring out of vitamin, in particular electron- and ion-induced desorption of adsorbed layers, emission from insulators, laser-induced desorption and ablation, photophysics and photochemistry. purposes starting from laser ablation for clinical reasons to vitamin in high-temperature superconductors also are defined.

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Additional info for Desorption Induced by Electronic Transitions DIET IV: Proceedings of the Fourth International Workshop, Gloggnitz, Austria, October 2–4, 1989

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Y. , J. Chern. Phys. 89, 570 (1988). [27] G. LambIe, R. Brooks, D. King, and D. Norman, Phys. Rev. Lett. 61, 1112 (1988). 23 Image-Screening of Positive Ions at Metal Surfaces, and Electronically Stimulated Desorption of Noble Gas Atoms RE. Walkup, Ph. D. Lang mM Research Division, Thomas J. O. Box 218, Yorktown Heights, NY 10598, USA Abstract. Diabatic potential energy curves are reported for ions interacting with metal surfaces. The calculations are based on a local density functional approach, which fully accounts for screening by the electrons within the metal valence band.

The particle mass enters into the problem only weakly because the wavepacket width decreases as the mass increases, thus partially compensating for the m- I term in the quantal "force". Thus, for example, quantum effects in the dynamics are of comparable importance for Ar and Kr. Quantum effects could be quite important if the neutral and ionic PE curves had 31 closely similar well positions, but different curvatures, as suggested by Jennison et al. [21 ]. 3. Conclusion In summary, we have carried out self-consistent calculations of diabatic PE curves for ions interacting with metal surfaces.

Lang, Phys. Rev. Lett. 46,842 (1981) 4. N. D. Lang, J. K. Norskov, and B. I. Lundqvist, Physica Scripta 34 , 77 (1986) 5. Ph. Avouris, R. Kawai, N. D. Lang, and D. M. Newns, Phys. Rev. Lett. 59, 2215 (1987); and J. Chern. Phys. 89,2388 (1988) 6. N. D. Lang and W. Kohn, Phys. Rev. B Z, 3541 (1973) 7. R. E. Walkup, Ph. Avouris, N. D. Lang, and R. Kawai, to be published 8. H. Hjelmberg, Surface Sci. 9. D. Menzel and R. Gomer, J. Chern. Phys. , 3311 (1964) 10. P. A. Redhead, Can. J. Phys. 42,886 (1964) II.

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