Low temperature scanning tunneling microscopy and spectroscopy of single crystals of the high temperature superconductor Bi2Sr2CaCu2O8, cleaved “in-situ” and at room temperature

1995 ◽  
Vol 204 (1-4) ◽  
pp. 206-213 ◽  
Author(s):  
H. Hancotte ◽  
D.N. Davydov ◽  
M. Ye ◽  
R. Deltour
2000 ◽  
Vol 07 (05n06) ◽  
pp. 589-593 ◽  
Author(s):  
S. KODAMBAKA ◽  
V. PETROVA ◽  
A. VAILIONIS ◽  
P. DESJARDINS ◽  
D. G. CAHILL ◽  
...  

In-situ high-temperature scanning tunneling microscopy was used to follow the coarsening (Ostwald ripening) and decay kinetics of single and multiple two-dimensional TiN islands on atomically flat TiN (001) terraces and in single-atom deep vacancy pits at temperatures of 750–950°C. The rate-limiting mechanism for island decay was found to be surface diffusion rather than adatom attachment/detachment at island edges. We have modeled island-decay kinetics based upon the Gibbs–Thomson and steady state diffusion equations to obtain a step-edge energy per unit length of 0.23±0.05 eV/Å and an activation energy for adatom formation and diffusion of 3.4±0.3 eV.


2012 ◽  
Vol 122 ◽  
pp. 1-5 ◽  
Author(s):  
Andres Castellanos-Gomez ◽  
Gabino Rubio-Bollinger ◽  
Manuela Garnica ◽  
Sara Barja ◽  
Amadeo L. Vázquez de Parga ◽  
...  

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