scholarly journals High Pressure Scanning Tunneling Microscopy Studies of AdsorbateStructure and Mobility during Catalytic Reactions: Novel Design of anUltra High Pressure, High Temperature Scanning Tunneling MicroscopeSystem for Probing Catalytic Conversions

2005 ◽  
Author(s):  
David Chi-Wai Tang
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Scanning Tunneling Microscopy ◽  
Catalytic Reactions ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
High Pressure High Temperature ◽  
Temperature Scanning ◽  
Novel Design

Coated silica tips for use in high-pressure, high-temperature, scanning tunneling microscopy

2001 ◽  
Vol 87 (1-2) ◽  
pp. 19-23 ◽  
Author(s):  
Brandon L. Weeks ◽  
Zoe H. Barber ◽  
Meera Raval ◽  
Mark E. Welland ◽  
Trevor Rayment
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Scanning Tunneling Microscopy ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
High Pressure High Temperature ◽  
Temperature Scanning

IN-SITU HIGH-TEMPERATURE SCANNING-TUNNELING-MICROSCOPY STUDIES OF TWO-DIMENSIONAL ISLAND-DECAY KINETICS ON ATOMICALLY SMOOTH TiN(001)

2000 ◽  
Vol 07 (05n06) ◽  
pp. 589-593 ◽  
Author(s):  
S. KODAMBAKA ◽  
V. PETROVA ◽  
A. VAILIONIS ◽  
P. DESJARDINS ◽  
D. G. CAHILL ◽  
...  
Keyword(s):  
High Temperature ◽  
Scanning Tunneling Microscopy ◽  
Ostwald Ripening ◽  
Single Atom ◽  
Scanning Tunneling ◽  
Two Dimensional ◽  
Decay Kinetics ◽  
Tunneling Microscopy ◽  
Temperature Scanning

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.

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