Atomic Scale Desorption and Fragmentation with the STM
The STM is not only a powerful probe of the atomic structure of surfaces, but is also a unique tool for the atomic scale modification and manipulation of materials. I will illustrate this new application of the STM with three examples: First, I will discuss a general approach for the selective breaking of strong chemical bonds, which we use to manipulate Si atoms on Si(111) at room temperature. I will then use the manipulation of a Au(111) surface to show that “local” modifications can couple with long-range elastic surface interactions to lead to large scale atomic rearrangements. Finally, I will discuss the use of electrons from the STM tip to induce the dissociation of individual molecular adsorbates.
KeywordsScanning Tunneling Microscope Voltage Pulse Dissociative Electron Attachment Dissociation Probability Soliton Line
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- 1.C.F. Quate, in Highlights and Prospects in Condensed Matter Physics, Ed. L. Esaki (Plenum, New York, 1992), and references therein.Google Scholar
- 4.Ph. Avouris, I.-W. Lyo, Appl. Surf. Sci., in press.Google Scholar
- 5.Ph. Avouris and Y. Hasegawa, to be published.Google Scholar
- 7.N.D. Lang, Phys. Rev. B, in press.Google Scholar
- 9.S. Ciraci, E. Tekman, M. Gokcedag and I.P. Batra, Ultramicroscopy, in press.Google Scholar
- 14.Y.I. Frenkel and T. Kontorova, Zh. Eksp. Teor. Fiz., 8, 1340 (1938).Google Scholar
- 15.S. Narasimhan and D. Vandcrbilt, to be published.Google Scholar
- 17.Ph. Avouris, J. Phys. Chem., 94, 2247 (1990), Ph. Avouris et al. J. Vac. Sci. Technol. B, 8, 3405 (1990).Google Scholar