Nanostructure fabrication with the scanning tunneling microscope by tunneling medium manipulation

1992 ◽  
Vol 60 (15) ◽  
pp. 1821-1823 ◽  
Author(s):  
S. L. Tang ◽  
A. J. McGhie ◽  
M. E. Lewittes
Keyword(s):  
Scanning Tunneling Microscope ◽  
Scanning Tunneling ◽  
Nanostructure Fabrication ◽  
Tunneling Microscope

Investigation On Laser-Induced Effects In Nanostructure Fabrication With Laser-Irradiated Scanning Tunneling Microscope Tips in Air Ambient

2000 ◽  
Vol 617 ◽  
Author(s):  
Z. H. Mai ◽  
Y. F. Lu ◽  
W. D. Song ◽  
W. K. Chim
Keyword(s):  
Thermal Expansion ◽  
Scanning Tunneling Microscope ◽  
Scanning Tunneling ◽  
Gold Films ◽  
Primary Reason ◽  
Nanostructure Fabrication ◽  
Tunneling Microscope ◽  
The Relationship ◽  
Kinetics Of ◽  
Sample Distance

AbstractIn this paper, we report our investigation on the kinetics of nanostructure fabrication on gold films and on H-passivated Ge surfaces. The relationship between the current and the tip-sample distance of the STM junction was measured for both gold films and H-passivated Ge surfaces. The tip-sample distance for gold films under a electrochemically etched W tip is approximately 2 nm, while that for H-passivated Ge sufaces is more than 27 nm. The thermal expansion length of the tip under laser irradiation was calculated. From the comparison of the thermal expansion length and the tip-sample distance, we can reach the conclusion that for gold films, thermal mechanical indention is the primary reason of nanostructure formation, while for H-passivated Ge surfaces, optical enhancement is the only reason.

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