Atomic structure and formation mechanism of identically sized Au clusters grown on Si(111)-(7×7) surface

2010 ◽  
Vol 133 (12) ◽  
pp. 124706 ◽  
Author(s):  
Yaping Wu ◽  
Yinghui Zhou ◽  
Changjie Zhou ◽  
Huahan Zhan ◽  
Junyong Kang
Keyword(s):  
Formation Mechanism ◽  
Atomic Structure ◽  
Au Clusters

Atomic structure and formation mechanism of (301) rutile twins from Diamantina (Brazil)

2007 ◽  
Vol 92 (11-12) ◽  
pp. 1789-1799 ◽  
Author(s):  
N. Daneu ◽  
H. Schmid ◽  
A. Recnik ◽  
W. Mader
Keyword(s):  
Formation Mechanism ◽  
Atomic Structure

Atomic structure and formation mechanism of (101) rutile twins from Diamantina (Brazil)

2014 ◽  
Vol 99 (4) ◽  
pp. 612-624 ◽  
Author(s):  
N. Daneu ◽  
A. Re nik ◽  
W. Mader
Keyword(s):  
Formation Mechanism ◽  
Atomic Structure

scholarly journals Atomic structure and formation mechanism of sub-nanometer pores in 2D monolayer MoS2

Nanoscale ◽  
2017 ◽  
Vol 9 (19) ◽  
pp. 6417-6426 ◽  
Author(s):  
Shanshan Wang ◽  
Huashan Li ◽  
Hidetaka Sawada ◽  
Christopher S. Allen ◽  
Angus I. Kirkland ◽  
...  
Keyword(s):  
Formation Mechanism ◽  
Atomic Structure ◽  
Monolayer Mos2

scholarly journals Atomic Structure and Mass-Production of Supported Size-Selected Nanoclusters

2014 ◽  
Vol 70 (a1) ◽  
pp. C733-C733
Author(s):  
Richard Palmer
Keyword(s):  
Atomic Structure ◽  
Scanning Transmission Electron Microscopy ◽  
Metal Cluster ◽  
Magic Number ◽  
Au Clusters ◽  
Potential Energy Landscape ◽  
Transmission Electron ◽  
Imaging Results ◽  
Scanning Transmission ◽  
3D Information

Deposition of size-selected nanoclusters assembled from atoms in the gas phase is a novel route to the fabrication of <10nm surface features. I will focus on the creation and atomic structure of monodispersed metal cluster arrays which enable new model catalysts and protein biochips. The atomic structure of the clusters – previously the province of theory - is revealed experimentally [1] by aberration-corrected scanning transmission electron microscopy (STEM) in the HAADF imaging regime; we can "count" atoms and obtain 3D information not just 2D projections. Results include mass spectrometry of thiolated Au clusters, adatom dynamics on Au923 magic-number nanoclusters [2], first atomic imaging results for Au55 and Au20 and a method to explore the potential energy landscape of (Au923) clusters via cluster transformations [3], presenting a reference system for theory. A new kind of cluster beam source, to allow super-abundant generation of size-selected nanoclusters, will also be demonstrated.

The Commensurate Phase of Al Overlayers on the Si(111) Surfaces: STM Study of the γ-Phase Surface

1993 ◽  
Vol 317 ◽  
Author(s):  
M. Yoshimura ◽  
K. Takaoka ◽  
T. Yao
Keyword(s):  
Scanning Tunneling Microscopy ◽  
Formation Mechanism ◽  
Atomic Structure ◽  
Area Ratio ◽  
Stacking Fault ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Commensurate Phase ◽  
Phase Surface ◽  
Good Agreement

ABSTRACTWe have elucidated the atomic structure of the γ-phase, which appears at 1ML coverage of Al on the Si (111) surface, using scanning tunneling Microscopy (STM). The structure is based on the 9×9 dimer-adatom-stacking fault (DAS) structure. Al atoms replace Si atoms in the second layer of the DAS Model. As a result, excess silicon atoms are produced during the formation of the γ-phase and migrate on the surface to form Monatomic-height islands. The area ratio of the upper and lower terraces is in good agreement with the proposed formation Mechanism.

Resolving the atomic structure of supported nanometer-size Au clusters

1998 ◽  
Vol 58 (23) ◽  
pp. 15889-15896 ◽  
Author(s):  
D. Lovall ◽  
M. Buss ◽  
R. P. Andres ◽  
R. Reifenberger
Keyword(s):  
Atomic Structure ◽  
Nanometer Size ◽  
Au Clusters

Microdomain atomic structure of Zr50Pd40Al10 metallic glasses and its formation mechanism

2019 ◽  
Vol 35 (3) ◽  
pp. 248-253 ◽  
Author(s):  
Kai Li ◽  
Fangliang Gao ◽  
Yu-Jen Chou ◽  
Kaixiang Shen ◽  
Guoqiang Li
Keyword(s):  
Formation Mechanism ◽  
Metallic Glasses ◽  
Atomic Structure

scholarly journals Can We Solve the Atomic Structure of Small Au clusters by HAADF-STEM?

2010 ◽  
Vol 16 (S2) ◽  
pp. 148-149
Author(s):  
ZW Wang ◽  
F Yin ◽  
A Bruma ◽  
RE Palmer
Keyword(s):  
Atomic Structure ◽  
Au Clusters

Extended abstract of a paper presented at Microscopy and Microanalysis 2010 in Portland, Oregon, USA, August 1 – August 5, 2010.

Radiation-induced surface decomposition

1983 ◽  
Vol 41 ◽  
pp. 368-369
Author(s):  
M. L. Knotek
Keyword(s):  
Ionizing Radiation ◽  
Atomic Structure ◽  
Chemical Bonding ◽  
Neutral Species ◽  
Radiation Induced ◽  
Physical And Chemical ◽  
Surface Decomposition ◽  
The Relationship ◽  
Electron And Photon ◽  
Surface Bond

Modern surface analysis is based largely upon the use of ionizing radiation to probe the electronic and atomic structure of the surfaces physical and chemical makeup. In many of these studies the ionizing radiation used as the primary probe is found to induce changes in the structure and makeup of the surface, especially when electrons are employed. A number of techniques employ the phenomenon of radiation induced desorption as a means of probing the nature of the surface bond. These include Electron- and Photon-Stimulated Desorption (ESD and PSD) which measure desorbed ionic and neutral species as they leave the surface after the surface has been excited by some incident ionizing particle. There has recently been a great deal of activity in determining the relationship between the nature of chemical bonding and its susceptibility to radiation damage.

Simulated Dark-Field Electron Micrographs of Point Defects and Organometallics

1975 ◽  
Vol 33 ◽  
pp. 200-201
Author(s):  
William Krakow
Keyword(s):  
Electron Micrographs ◽  
Point Defects ◽  
Structure Determination ◽  
Atomic Structure ◽  
Image Interpretation ◽  
Dark Field ◽  
Field Electron ◽  
Dark Field Microscopy ◽  
Dark Field Electron

Tilted beam dark-field microscopy has been applied to atomic structure determination in perfect crystals, several synthesized molecules with heavy atcm markers and in the study of displaced atoms in crystals. Interpretation of this information in terms of atom positions and atom correlations is not straightforward. Therefore, calculated dark-field images can be an invaluable aid in image interpretation.

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