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.

Room temperature observation of the correlation between atomic and electronic structure of graphene on Cu(110)

RSC Advances ◽  
2016 ◽  
Vol 6 (100) ◽  
pp. 98001-98009 ◽  
Author(s):  
Thais Chagas ◽  
Thiago H. R. Cunha ◽  
Matheus J. S. Matos ◽  
Diogo D. dos Reis ◽  
Karolline A. S. Araujo ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Chemical Vapor Deposition ◽  
Scanning Tunneling Microscopy ◽  
Vapor Deposition ◽  
Room Temperature ◽  
Chemical Vapor ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Temperature Observation ◽  
Atomic And Electronic Structure

We have used atomically-resolved scanning tunneling microscopy and spectroscopy to study the interplay between the atomic and electronic structure of graphene formed on copper via chemical vapor deposition.

Quantitative Scanning Tunneling Microscopy at Atomic Resolution: Influence of Forces and Tip Configuration

1996 ◽  
Vol 76 (8) ◽  
pp. 1276-1279 ◽  
Author(s):  
A. R. H. Clarke ◽  
J. B. Pethica ◽  
J. A. Nieminen ◽  
F. Besenbacher ◽  
E. Lægsgaard ◽  
...  
Keyword(s):  
Scanning Tunneling Microscopy ◽  
Atomic Resolution ◽  
Scanning Tunneling ◽  
Tunneling Microscopy

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.

Extending Atomic-resolution Electrochemicl Scanning Tunneling Microscopy Studies to Polycrystalline Electrode Surfaces

1997 ◽  
Vol 13 (12) ◽  
pp. 1061-1064
Author(s):  
Shi Cai-Hui ◽  
◽  
Cai Xiong-Wei ◽  
Chen Yan-Xia ◽  
Tian Zhong-Qun ◽  
...  
Keyword(s):  
Scanning Tunneling Microscopy ◽  
Atomic Resolution ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Electrode Surfaces

Local Electronic Structure in Ordered Aggregates of Carbon Nanotubes: Scanning Tunneling Microscopy/scanning Tunneling Spectroscopy Study

1998 ◽  
Vol 13 (9) ◽  
pp. 2389-2395 ◽  
Author(s):  
D. L. Carroll ◽  
P. M. Ajayan ◽  
S. Curran
Keyword(s):  
Carbon Nanotubes ◽  
Electronic Structure ◽  
Scanning Tunneling Microscopy ◽  
Local Density ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Spatially Resolved ◽  
Local Electronic Structure

The recent application of tunneling probes in electronic structure studies of carbon nanotubes has proven both powerful and challenging. Using scanning tunneling microscopy (STM) and scanning tunneling spectroscopy (STS), local electronic properties in ordered aggregates of carbon nanotubes (multiwalled nanotubes and ropes of single walled nanotubes) have been probed. In this report, we present evidence for interlayer (concentric tube) interactions in multiwalled tubes and tube-tube interactions in singlewalled nanotube ropes. The spatially resolved, local electronic structure, as determined by the local density of electronic states, is shown to clearly reflect tube-tube interactions in both of these aggregate forms.

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