ion bombardment
Transition from ripples to faceted structures under low energy argon ion bombardment of silicon: understanding the role of shadowing and sputtering
... Ar ion bombardment for two angles of incidence, namely 70° and ...intermediate ion energies), applied for the first time in the low ion energy regime, successfully ex- plains the pattern ...
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Tailoring magnetic anisotropy gradients by ion bombardment for domain wall positioning in magnetic multilayers with perpendicular anisotropy
... Graded anisotropy magnetic materials possess a coercive field changing laterally with position. A simple fabrication procedure to produce such an anisotropy gradient in a polycrystalline Au/Co layer system without ...
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Irreversible Structural Transformation of five fold i- AlPdMn Quasicrystals after Ion Bombardment and Annealing
... As last example we present the 72-116 Bragg peak evolution on the polished sample C. This time annealing cycles at about (T ≅ 880 K) without sputtering was performed (figure 4). This annealing temperature is just high ...
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Influence of helium ion bombardment on the optical properties of ZnO nanorods/p GaN light emitting diodes
... After the growth of the ZnO NRs on p-GaN sub- strates, three samples were used to process the LEDs. Pt/Ni/Au alloy was used to form ohmic contact to the p-GaN substrate. The thickness of the Pt, the Ni, and the Au layers ...
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Secondary electron emission due to positive ion bombardment
... Stray electrons were produced in the Ames Laboratory linear accelerator by the ion beam striking the target and various other parts of the accelerator. This experiment was done to determine if the stray electrons ...
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Some phenomena produced by positive ion bombardment of metal surfaces at medium energies
... The property b - no low energy peak for a Pt target - could be a combination of both the higher energies of the scattered A + ions which reduces the probability of a second close collisi[r] ...
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Low temperature removal of surface oxides and hydrocarbons from Ge(100) using atomic hydrogen
... Germanium is a group IV semiconductor with many current and potential applications in the modern semiconductor industry. Key to expanding the use of Ge is a reliable method for the removal of surface contamination, ...
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Fundamental ion surface interactions in plasma thrusters
... Predicting graphite grid life (and by extension, thruster life) requires an accurate knowledge of carbon sputtering yields. The yields for carbon materials are significantly lower than those of most metals, making them ...
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ZrN coatings deposited by high power impulse magnetron sputtering and cathodic arc techniques
... Zirconium nitride (ZrN) coatings were deposited on 1 micron finish High Speed Steel (HSS) and 316L Stainless Steel (SS) test coupons. Cathodic Arc (CA) and HIPIMS (High Power Impulse Magnetron Sputtering) + UBM ...
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Effects of Gas Composition on Highly Efficient Surface Modification of Multi Walled Carbon Nanotubes by Cation Treatment
... in ion bombardment, the generated oxygen cations can also act as highly reactive chemical species which form covalent bonds with the amorphous carbon and then nanotube ...
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Chemical and mechanical stability of air annealed cathodic arc evaporated CrAlON coatings
... After the Ar+-ion bombardment, high purity nitrogen and oxygen gases were mixed in the chamber to produce seven different coatings A-G, which composition and structure varied as a functi[r] ...
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Self organizing nanodot structures on InP surfaces evolving under low energy ion irradiation: analysis of morphology and composition
... from selected ion-irradiated InP samples. Because of their very small radius of curvature and the equally small di- mensions of the nanodots, this fabrication process proved very delicate and only a limited number ...
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Surface treatment in a cathodic arc plasma : Key step for interface engineering
... the ion energy for pure Ar-ion bombardment with ...metal ion bombardment, where Ar serves as support gas for the arc discharge suggests th at Ar atoms are ionised in the ...lower ...
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Ion Beam Directed Self Ordering of Ga Nanodroplets on GaAs Surfaces
... The ion bombardment on the substrates were carried out using a FIB instrument (Hitachi FB-2100, Ga + ion) with a beam-limiting aper- ture of 80, 150, 300, and 650 μm, corresponding to a beam current ...
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Structure and properties of ZrN coatings deposited by high power impulse magnetron sputtering technology
... low ion bombardment; consisting of dome shaped column tops and easily resolved columnar grain boundaries (sometimes with voids) of the competitively grown columnar grains ...energy ion ...
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In vitro propagation of solanum surattense burm. f by high frequency multiple shoot induction from floral bud explants
... gun bombardment or Agrobacterium tumefaciens and also the established shoot regeneration technique in the present study has a potential impact for clonal propagation of elite genotypes and improvement ...
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A new toolset for protein expression and subcellular localization studies in citrus and its application to citrus tristeza virus proteins
... pressure. Bombardment of an endoplasmic reticulum (ER) GFP marker (GFP-HDEL) into detached leaves of Citrus macrophylla (C-mac) resulted in up to ~ 700 GFP expressing cells in a typical 10 × magnification micro- ...
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Ion processing apparatus including plasma ion source and mass spectrometer for ion deposition, ion implantation, or isotope separation
... plasma ion source is preferably an inductively coupled plasma ion source, and the mass spectrometer is preferably a quadrupole mass ...an ion beam having a desired ...plasma ion source and ...
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Ion ion and ion solvent interactions
... Ionic Crystals ii Molten Salts iii The "expajided" Model iv The "confined" Model v Oscillator Strengths vi 'The "square well" Approximation 1 The "points of attachment" postulate 2 Mixed[r] ...
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Process Parameter Optimization on H11 Steel in CNC Drilling Process through Coated and Uncoated Drill Bits
... The coating method involves purely physical processes such as high-temperature vacuum evaporation with subsequent condensation, or plasma sputter bombardment rather t[r] ...
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