Images of adsorbates with the scanning tunneling microscope: theoretical approaches to the contrast mechanism
Article Abstract:
Several theoretical approaches have different interpretation of the images of the adsorbate produced in the scanning tunneling microscope (STM). If the tunnel gives a short tip, it would represent a surface separation. If it gives a strong tip, it represents a surface interaction. The STM does not produce the image of the adsorbate alone but rather searches for the adsorbate together with the substrate that are mutually agitated by their interactions. More precise analysis and understanding of the images produced by the STM should be developed to provide accurate results.
Publication Name: Chemical Reviews
Subject: Chemistry
ISSN: 0009-2665
Year: 1997
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Effect of strain on structure and morphology of ultrathin Ge films on Si(001)
Article Abstract:
Force and tunneling microscopy were used in the study for the effects of strain on the growth of ultrathin Ge films on Si(001). The use of Ge on Si(001) shows the effect of misfit strain on thermodynamic properties that influence the early stages of heteroepitaxy. Two types of strain-induced surface roughening processes are the formation of defects and the formation of coherent 3D islands. Controlling the roughening processes would depend on the manipulation of growth kinetics and surface thermodynamics for nanofabrication.
Publication Name: Chemical Reviews
Subject: Chemistry
ISSN: 0009-2665
Year: 1997
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Nanometer-scale surface modification using the scanning probe microscope: progress since 1991
Article Abstract:
The scanning probe-based lithography (SPL) is used for high-density information storage and nanometer-scale device fabrication or modification. Nanometer-scale surface material was modified to mechanical, electrical or optical modes for use in the SPL. Although there are other scanning microscopes, the SPL demonstrates unique capabilities of performing a range of fundamental investigations regarding surfaces that are unequaled by others.
Publication Name: Chemical Reviews
Subject: Chemistry
ISSN: 0009-2665
Year: 1997
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