Observations Of Epitaxial Growth Using Scanning Tunneling Microscopy

Author(s):  
D. K. Biegelsen ◽  
R. D. Bringans ◽  
L. E. Swartz
1987 ◽  
Vol 94 ◽  
Author(s):  
Y. Kuk ◽  
P. J. Silverman ◽  
T. M. Buck

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.


1988 ◽  
Vol 131 ◽  
Author(s):  
Phaedon Avouris ◽  
Robert Wolkow

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.


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