Atomic surface structure of the phosphorous-terminated InP(001) grown by MOVPE

1999 ◽  
Vol 60 (8) ◽  
pp. R5117-R5120 ◽  
Author(s):  
P. Vogt ◽  
Th. Hannappel ◽  
S. Visbeck ◽  
K. Knorr ◽  
N. Esser ◽  
...  
Keyword(s):  
Surface Structure ◽  
Atomic Surface

scholarly journals Influence of Atomic Surface Structure on the Activity of Ag for the Electrochemical Reduction of CO2 to CO

ACS Catalysis ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 4006-4014 ◽  
Author(s):  
Ezra L. Clark ◽  
Stefan Ringe ◽  
Michael Tang ◽  
Amber Walton ◽  
Christopher Hahn ◽  
...  
Keyword(s):  
Surface Structure ◽  
Electrochemical Reduction ◽  
Atomic Surface ◽  
Reduction Of Co2

The atomic surface structure of Pt0.5Ni0.5(111)

1991 ◽  
Vol 243 (1-3) ◽  
pp. 49-57 ◽  
Author(s):  
E van de Riet ◽  
S Deckers ◽  
F.H.P.M Habraken ◽  
A Niehaus
Keyword(s):  
Surface Structure ◽  
Atomic Surface

The atomic surface structure of SrTiO3(001) in air studied with synchrotron X-rays

2005 ◽  
Vol 595 (1-3) ◽  
pp. 183-193 ◽  
Author(s):  
V. Vonk ◽  
S. Konings ◽  
G.J. van Hummel ◽  
S. Harkema ◽  
H. Graafsma
Keyword(s):  
Surface Structure ◽  
X Rays ◽  
Atomic Surface

The Observation of Atomic Surface Structure from Au Thin Films

1981 ◽  
Vol 39 ◽  
pp. 200-203
Author(s):  
William Krakow ◽  
G. Trafas
Keyword(s):  
Surface Structure ◽  
Incident Beam ◽  
Dark Field ◽  
Transmission Electron ◽  
Unit Cells ◽  
Crystalline Films ◽  
Microscope Imaging ◽  
Lattice Unit ◽  
Atomic Surface ◽  
Au Thin Films

The direct imaging of the surface structure of thin crystalline films in the conventional transmission electron microscope (CTEM) requires resolution of a few angstroms both laterally and perpendicular to the atomic surface layers. Although the lateral resolution was not achieved, dark-field images of the forbidden reflections from (111) Au films could be employed to image lateral areas ∼500Å diameter. The first atomic level resolution pictures of the Au surface of (001) films were reported by Krakow and Ast. Here optical diffractograms revealed the presence of the forbidden surface reflections due to partially filled bulk lattice unit cells corresponding to a surface lattice periodicity of ∼2.86Å. Subsequently, improved electron micrographs were obtained at incident beam energies of lOOkV and at ImeV where in the latter case the microscope resolution was better than 2Å3. Several diffraction experiments were also performed to understand the nature of the surface structure of (001)Au. In this study models of a “single” (001)Au surface were constructed and computations performed to demonstrate the types of images attainable at different resolution levels and under different microscope imaging conditions.

Interpretation of the Atomic Surface Structure of Ag2O on (111) Au thin films

1983 ◽  
Vol 31 ◽  
Author(s):  
William Krakow
Keyword(s):  
Surface Structure ◽  
Image Features ◽  
Electron Microscope Investigation ◽  
Resolution Electron ◽  
Atomic Surface ◽  
High Resolution Electron Microscope ◽  
Au Thin Films ◽  
Diffraction Patterns ◽  
Digital Frame ◽  
Image Simulations

ABSTRACTA high resolution electron microscope investigation of the residual oxidized silver of a few monolayers thickness on the surface of (111) Au films has shown that a reconstructed (2×1) surface structure occurs for (110) oriented Ag2O and can be observed at atomic resolution levels. Image enhancement via a digital frame store processor has revealed improved images which have then been compared to computer simulated diffraction patterns and images of the Ag2O surface. Several iterations of surface structure models and image simulations reveal that the (2×1) reconstruction is consistent with a missing row model. The atomic arrangements of these rows often undergo a translation along the direction of the row to produce cusp like image features. It has also been possible to observe the effect of contraction of the underlying layer which can produce diagonal contrast lines in the images. These features often vary rapidly over lateral distances of a few tens of angstroms and give an indication of the surface topography and the degree ordering of the surface.

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