Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5359140 | Applied Surface Science | 2009 | 6 Pages |
Abstract
Using low-temperature scanning tunneling microscopy/spectroscopy we have developed a method for measuring electrostatic potential in high spatial and energy resolutions, and performed a real-space observation of the potential screened by two-dimensional surface electrons around step edges, where extra charges are localized, on the Si(1Â 1Â 1)â3Â ÃÂ â3-Ag surface. In the potential images, characteristic decay and the Friedel oscillation were clearly observed around the charges.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Masanori Ono, Takahiro Nishio, Toshu An, Toyoaki Eguchi, Yukio Hasegawa,