Long-Range Electronic Perturbations Caused by Defects Using Scanning Tunneling Microscopy
- 5 May 1989
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 244 (4904) , 559-562
- https://doi.org/10.1126/science.244.4904.559
Abstract
Real-space observations of long-range electronic perturbations caused by defects have been made with scanning tunneling microscopy. The defects are isolated adsorbed molecules on the surface of graphite. These defects perturb the charge density, giving periodic oscillations similar to Friedel oscillations. The oscillations have a wavelength √3 times that of the graphite lattice, and the symmetry of the oscillations reflects the nature of the defect.Keywords
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