منابع مشابه
Nanoscopic surface modification by slow ion bombardment
We present systematic scanning tunneling microscopy (STM)/atomic-force microscopic (AFM) investigations on nanoscopic defect production at atomically clean surfaces of SiO2, Al2O3 and highly oriented pyrolytic graphite (HOPG) after bombardment by slow (impact energy ≤ 1.2 keV) singly and multiply charged ions under strict ultra-high vacuum (UHV) conditions. Combined STM and AFM studies show tha...
متن کاملX-ray production by ion bombardment
2014 The available experimental and theoretical results on ion induced X-rays are briefly surveyed. From experimental data it may be concluded that the mechanism for inner shell excitation by heavy ion-atom collisions is different from that for proton-atom collisions. The latter are described successfully in Plane Wave Born Approximation (PWBA) and in classical Binary Encounter Approximation (B...
متن کاملIon Bombardment of Interplanetary Dust
The recent discovery of ion tracks in interplanetary dust and the increasing evidence for carbon and carburized materials in these objects are strongly suggestive that chemical processing by energetic charged-particle bombardment has occurred during the dust lifetimes. The track density gives a measure of the total ion fluence experienced by the grains. We use this information and laboratory da...
متن کاملDefects in Crystals Created by Ion Bombardment : Theory and Simulation
The damage processes involved in the penetration of an energetic ion in a crystalline solid are reviewed qualitatively. Different methods of studying the mechanisms of damage and defects created are described and the role of computer simulation in the comparison of theory and experiment is discussed.
متن کاملReactive ion etching
The reactive ion etching ofInP, InGaAs, and InAIAs in CClzF2/02 or C2R(/H2 discharges was investigated as a function of the plasma parameters pressure, power density, flow rate, and relative composition. The etch rates of these materials are a factor of 3-5 X faster in CC12F 2/0 2 (-600--1000 AminJ ) compared to CzHJH2 (160-320 AminI ). Significantly smoother morphologies are obtained with C2H6...
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ژورنال
عنوان ژورنال: Journal of the American Ceramic Society
سال: 1958
ISSN: 0002-7820,1551-2916
DOI: 10.1111/j.1151-2916.1958.tb13540.x