Size Effects on Short-Time Self-Diffusion in Dilute Highly-Charged Colloidal Suspensions

2008 ◽  
Author(s):  
T. Furubayashi ◽  
M. Tokuyama ◽  
Y. Terada ◽  
Michio Tokuyama ◽  
Irwin Oppenheim ◽  
...  
Keyword(s):  
Size Effects ◽  
Colloidal Suspensions ◽  
Self Diffusion ◽  
Short Time

Short-Time Dynamics in Quasi-Two-Dimensional Colloidal Suspensions

2005 ◽  
Vol 95 (19) ◽  
Author(s):  
Jesús Santana-Solano ◽  
Angeles Ramírez-Saito ◽  
José Luis Arauz-Lara
Keyword(s):  
Colloidal Suspensions ◽  
Two Dimensional ◽  
Time Dynamics ◽  
Short Time

Self‐diffusion in colloidal suspensions. Intermediate times

1993 ◽  
Vol 98 (9) ◽  
pp. 7521-7526 ◽  
Author(s):  
M. D. Carbajal‐Tinoco ◽  
J. L. Arauz‐Lara
Keyword(s):  
Colloidal Suspensions ◽  
Self Diffusion

scholarly journals Shear-induced self-diffusion in non-colloidal suspensions

2004 ◽  
Vol 506 ◽  
pp. 285-314 ◽  
Author(s):  
ASIMINA SIEROU ◽  
JOHN F. BRADY
Keyword(s):  
Colloidal Suspensions ◽  
Self Diffusion

Interband Optical Properties of the Microcrystalline Component within the Damage Layer of Be+ - Implanted GaAs

1988 ◽  
Vol 128 ◽  
Author(s):  
G. F. Feng ◽  
R. Zallen
Keyword(s):  
Optical Properties ◽  
Size Effects ◽  
Finite Size ◽  
Bulk Crystal ◽  
Interband Absorption ◽  
Finite Size Effects ◽  
Damage Layer ◽  
Lorentz Oscillator ◽  
Fine Grain ◽  
Short Time

ABSTRACTThe damage layer in unannealed Be+-implanted GaAs samples (45-keV Be+ ions, 1013 to 5 × 1014 ions/cm2) consists of a fine-grain mixture of amorphous GaAs and GaAs microcrystals, with the characteristic microcrystal size L of the microcrystalline component decreasing with increasing fluence. We have carried out reflectivity measurements on these samples for photon energies from 2.0 to 5.6 eV, in the electronic interband regime. Using Lorentz oscillator analysis and the effective medium approximation, we have extracted the dielectric function of the microcrystalline component (μ-GaAs) within the damage layer. The optical properties of μ-GaAs deviate appreciably from those of the bulk crystal near the interband absorption peaks. The linevidths of these peaks are found to increase over the bulk-crystal value by an amount proportional to (l/L), the increase being about 0.2 eV when L =100 Å. These finite-size effects can be understood in terms of a lifetime reduction caused by the short time it takes for electrons to reach the microcrystal boundaries.

Short-time dynamics of charge-stabilized colloidal suspensions

1994 ◽  
Vol T55 ◽  
pp. 119-126 ◽  
Author(s):  
Gerhard Nägele ◽  
Barbara Steininger ◽  
Ulrike Genz ◽  
Rudolf Klein
Keyword(s):  
Colloidal Suspensions ◽  
Time Dynamics ◽  
Short Time
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