Surface science got a new impact with the development of the seanning tunneling microscope, since for the first time atomic-resolution observations of surface structures in real space have becomepossible. Following ashort description of the basic features of the seanning tunneling microscopy, some selected results are presented which illustrate the potential of the technique to provide informat...

The authors have studied adsorption of acetylene on Cu͑110͒ by means of low-temperature scanning tunneling microscopy. Adsorbed molecules preferentially aggregate at 40 K to yield dimer, trimer, and larger islands on the surface. Isolated species ͑monomer͒ adsorbs on the fourfold hollow site with ϳsp 3 rehybridization as characterized by inelastic electron tunneling spectroscopy. Tunneling electron...

The technique of scanning tunneling microscopy has been applied to topographic mapping of two optical surfaces: a ruled grating replica and a diamond-turned gold mirror. We have demonstrated the ability of the scanning tunneling microscope to measure surface topography of a ruled-grating replica over an area of 2 microm x 2 microm. Furthermore, surface structure on a diamond-turned gold mirror ...

Synopsis The STM provides real space atomic resolution images through tunneling current between a conductive tip and a conductive/semiconductive surface. In this lab unit, we employ two STM modes, i.e., constant current imaging mode and tunneling spectroscopy mode, to study HOPG (graphite) and gold (Au). HOPG is one of well studied materials and serves as a standard for STM technique, and the i...

In this work, ultrathin titanium silicide layers were grown on Si(1 1 1) substrates, with the aim to stimulate spontaneous growth of nanostructures by self-assembly. Scanning tunneling microscopy was used as a primary tool for a close, in situ monitoring of the related surface processes. This method enabled a detailed observation of the formation and subsequent evolution of the silicide nanoisl...