Numerical simulations of photon scanning tunneling microscopy: role of a probe tip geometry in image formation

2005 ◽  
Vol 244 (1-6) ◽  
pp. 245-258 ◽  
Author(s):  
S. Goumri-Said ◽  
L. Salomon ◽  
J.P. Dufour ◽  
F. de Fornel ◽  
A.V. Zayats
Keyword(s):  
Scanning Tunneling Microscopy ◽  
Numerical Simulations ◽  
Image Formation ◽  
Scanning Tunneling ◽  
Tunneling Microscopy

ON THE ROLE OF KINKS AND STRAIN IN HETEROEPITAXIAL GROWTH: AN STM STUDY

2000 ◽  
Vol 07 (05n06) ◽  
pp. 673-677
Author(s):  
E. LUNDGREN ◽  
M. SCHMID ◽  
G. LEONARDELLI ◽  
A. HAMMERSCHMID ◽  
B. STANKA ◽  
...  
Keyword(s):  
Diffusion Process ◽  
Scanning Tunneling Microscopy ◽  
Three Dimensional ◽  
Growth Mode ◽  
Scanning Tunneling ◽  
Two Dimensional ◽  
Heteroepitaxial Growth ◽  
Tunneling Microscopy ◽  
Exchange Diffusion

Interlayer diffusion of Co over steps of vacancy islands on the Pt(111) surface as studied by scanning tunneling microscopy is presented. It is demonstrated that Co atoms descend Pt steps by an exchange diffusion process at the step edge with the Pt atoms. Further, the exchange diffusion process is observed to occur at the corners (kinks) of the vacancy islands. The importance of kinks concerning whether the growth mode of a heteropitaxial film is two-dimensional or three-dimensional is demonstrated for the case of thin Co films on Pt(111). We argue that the strain in the Co film is to a large extent responsible for the kink formation.

Studies of covalently immobilized protein molecules by scanning tunneling microscopy: the role of water in image contrast formation

1993 ◽  
Vol 97 (35) ◽  
pp. 8852-8854 ◽  
Author(s):  
Graham J. Leggett ◽  
Martyn C. Davies ◽  
David E. Jackson ◽  
Clive J. Roberts ◽  
Saul J. B. Tendler ◽  
...  
Keyword(s):  
Scanning Tunneling Microscopy ◽  
Image Contrast ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Protein Molecules
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