Atomic Resolution Noncontact Atomic Force and Scanning Tunneling Microscopy ofTiO2(110)−(1×1)and -(1×2): Simultaneous Imaging of Surface Structures and Electronic States

2001 ◽  
Vol 86 (19) ◽  
pp. 4334-4337 ◽  
Author(s):  
M. Ashino ◽  
Y. Sugawara ◽  
S. Morita ◽  
M. Ishikawa
1995 ◽  
Vol 3 (4) ◽  
pp. 6-7
Author(s):  
Stephen W. Carmichael

For biologic studies, atomic force microscopy (AFM) has been prevailing over scanning tunneling microscopy (STM) because it has the capability of imaging non-conducting biologic specimens. However, STM generally gives better resolution than AFM, and we're talking about resolution on the atomic scale. In a recent article, Franz Giessibl (Atomic resolution of the silicon (111)- (7X7) surface by atomic force microscopy, Science 267:68-71, 1995) has demonstrated that atoms can be imaged by AFM.


Author(s):  
Mircea Fotino

An essential requirement in the pursuit of atomic resolution by scanning tunneling microscopy (STM) or atomic force microscopy (AFM) is the use of a tip with an apex of dimensions comparable to or preferably smaller than those of the specimen to be identified. Although atomic resolution of mostly planar specimens has been obtained even with atomically blunt tips, the above requirement appears indispensable for determining 3D surface structures extending equally in all three dimensions.Tips most commonly used so far in STM or AFM applications are made by grinding or by etching a thin and rigid Pt/Ir or W wire. Mechanical grinding occasionally leaves protruding spikes typically several tens of nm in radius that can play the role of scanning stilus even though neither adequately oriented nor particularly sharp and symmetric.


1996 ◽  
Vol 76 (8) ◽  
pp. 1276-1279 ◽  
Author(s):  
A. R. H. Clarke ◽  
J. B. Pethica ◽  
J. A. Nieminen ◽  
F. Besenbacher ◽  
E. Lægsgaard ◽  
...  

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