Study of Epitaxial Growth of Au on Ni(110) by Scanning Tunneling Microscopy

1987 ◽  
Vol 94 ◽  
Author(s):  
Y. Kuk ◽  
P. J. Silverman ◽  
T. M. Buck
Keyword(s):  
Scanning Tunneling Microscopy ◽  
Epitaxial Growth ◽  
Scanning Tunneling ◽  
Tunneling Microscopy

ABSTRACTThe structure of the Au segregated Ni(110)-0.8%Au surface has been studied by scanning tunneling microscopy. The segregated Au layer forms a (7×4) structure with a c(2×4) subunit. At various coverages of Au overlayer, commensurate and incommensurate Au structures were observed. At a coverage of I monolayer, islands and facets assciated with incommensurate Au atoms were observed.

Studies of Si Surface Chemistry and Epitaxy Using Scanning Tunneling Microscopy and Spectroscopy

1988 ◽  
Vol 131 ◽  
Author(s):  
Phaedon Avouris ◽  
Robert Wolkow
Keyword(s):  
Electronic Structure ◽  
Spatial Distribution ◽  
Surface Chemistry ◽  
Scanning Tunneling Microscopy ◽  
Epitaxial Growth ◽  
Atomic Resolution ◽  
Scanning Tunneling ◽  
Tunneling Microscopy

ABSTRACTWe apply scanning tunneling microscopy (STM) and spectroscopy (STS) to study the reaction of NH3 with Si(111)-(7×7), and the epitaxial growth of CaF2 on Si(11). By a combination of topographs and atom-resolved spectra we can follow the spatial distribution of the reaction and changes in electronic structure with atomic resolution. We find that there are strong site-selectivities for the NH3 reaction on the 7×7 surface. We also observe the initial stages of the CaF2 deposition and even are able to image insulating multi-layer CaF2 films.

Sign in / Sign up

Export Citation Format

Share Document