scholarly journals Ion-induced effective surface diffusion in ion sputtering

1997 ◽  
Vol 71 (19) ◽  
pp. 2800-2802 ◽  
Author(s):  
Maxim A. Makeev ◽  
Albert-László Barabási
Keyword(s):  
Surface Diffusion ◽  
Ion Sputtering ◽  
Effective Surface

Low Temperature Ripple Formation: Ion-Induced Effective Surface Diffusion in Ion Sputtering

1998 ◽  
Vol 540 ◽  
Author(s):  
M. A. Makeev ◽  
A.-L. Barabási
Keyword(s):  
Low Temperature ◽  
Surface Diffusion ◽  
Low Temperatures ◽  
Surface Erosion ◽  
Ion Sputtering ◽  
Effective Surface ◽  
Energetic Ions ◽  
Thermally Activated ◽  
Ripple Formation ◽  
Activated Processes

AbstractSurfaces bombarded with energetic ions may develop a rough or a ripple surface morphology. The ripple formation has been successfully described by the instability caused by preferential erosion, the ripple wavelength being determined by the competition between surface erosion and thermally activated diffusion. However, as recent experiments and computer simulations have shown, ripple formation takes place even at the low temperatures, when thermally activated processes are suppressed. In this paper we propose a theory to explain low-temperature ripple formation based on the ion-induced effective surface diffusion.

Effective surface diffusion of nickel on single crystal β-Ga2O3for Schottky barrier modulation and high thermal stability

2019 ◽  
Vol 7 (35) ◽  
pp. 10953-10960 ◽  
Author(s):  
Hojoong Kim ◽  
Sinsu Kyoung ◽  
Taiyoung Kang ◽  
Jang-Yeon Kwon ◽  
Kyung Hwan Kim ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Thermal Stability ◽  
Single Crystal ◽  
Schottky Barrier ◽  
Surface Diffusion ◽  
Schottky Contact ◽  
High Thermal Stability ◽  
Schottky Barrier Diodes ◽  
Effective Surface

β-Ga2O3Schottky barrier diodes (SBDs) were demonstrated with Ni Schottky contact deposited by the confined magnetic field-based sputtering (CMFS) method.

A theory of contamination in electron microscopes by surface diffusion

1978 ◽  
Vol 36 (1) ◽  
pp. 116-117
Author(s):  
J.T. Fourie
Keyword(s):  
Electron Beam ◽  
Surface Diffusion ◽  
High Vacuum ◽  
Ultra High Vacuum ◽  
Physical Parameters ◽  
Carbon Compounds ◽  
Hydrocarbon Molecules ◽  
Electron Microscopes ◽  
Primary Electrons ◽  
Long Chain

Contamination in electron microscopes can be a serious problem in STEM or in situations where a number of high resolution micrographs are required of the same area in TEM. In modern instruments the environment around the specimen can be made free of the hydrocarbon molecules, which are responsible for contamination, by means of either ultra-high vacuum or cryo-pumping techniques. However, these techniques are not effective against hydrocarbon molecules adsorbed on the specimen surface before or during its introduction into the microscope. The present paper is concerned with a theory of how certain physical parameters can influence the surface diffusion of these adsorbed molecules into the electron beam where they are deposited in the form of long chain carbon compounds by interaction with the primary electrons.

Behavior of powder under weak perturbations: the concept of the effective surface. II.

1991 ◽  
Vol 1 (10) ◽  
pp. 1167-1177 ◽  
Author(s):  
E. V. Gurovich ◽  
S. V. Maruk
Keyword(s):  
Effective Surface

Blue Sapphire with Partial Red Surface Diffusion

2020 ◽  
Vol 37 (1) ◽  
pp. 23-24
Author(s):  
Bear Williams ◽  
Cara Williams ◽  
Charles I. Carmona
Keyword(s):  
Surface Diffusion
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