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Showing 1 to 20 of 32 for “"silicides"”.
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Laser induced epitaxy of Ni and Co silicides
… effects. Laser annealing of thermally grown monosilicides gave low (~5%) minimum yields for Co and Ni on <111> substrates1 as well as Ni on <100> substrates. The best yield achieved for Co on <100> substrates is 35%. The formation of a non-equilibrium epitaxial monosilicide was also achieved. …
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Growth and characterisation of thin film superconductors on oxides, silicon and silicides
… ruby laser ablation on oxides, silicon and silicides is investigated. The inverted cylindrical magnetron sputter system has been effectively used to counter the problem of negative ion re-sputtering found in sputter deposition of oxide films. The optimal growth conditions for both these …
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The formation of epitaxially stabilized nickel and cobalt silicides by pulsed laser annealing
… of epitaxially stabilised nickel and cobalt silicides by pulsed laser annealing has been investigated. Thermally grown NiSi and CoSi and Si<111> substrate were irradiated with laser pulses in the energy density range between 0.4 - 1.0 J/cm² in an attempt to produce epitaxially stabilized …
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Hot-wire chemical vapour deposition of nanocrystalline silicon and silicon nitride : growth mechanisms and filament stability
… of a recrystallized Ta-core with Ta-rich silicides at the hotter centre regions and Si-rich Ta-silicides at the cooler ends nearer to the electrical contacts. The growth of nc-Si:H by HWCVD is controlled by surface reactions before and beyond the transition from a-Si:H to nc-Si:H. During …
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Controlling CoSi2 formation temperature by reactive deposition
… and the silicon starts immediately and cobalt silicides are formed directly - a technique referred to as reactive deposition. This procedure was used to grow silicide films over a variety of temperatures ranging between 375 - 550 ce. It was found that a disilicide film is formed directly for …
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An X-ray study of the behavior of titanium films on silicon substrates
… and silicon. The temperatures for formation of silicides in thin films was found to be substantially lower than previously reported<sub>(2)</sub>, indicative of the oxide free interface of the silicon substrates. The identification of the reactant silicides, deposited at the grain boundaries and …
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ΗΛΕΚΤΡΙΚΕΣ ΙΔΙΟΤΗΤΕΣ ΛΕΠΤΩΝ ΥΜΕΝΙΩΝ ΜΕΤΑΛΛΟΥ-ΠΥΡΙΤΙΟΥ
… ΛΕΠΤΩΝ ΥΜΕΝΙΩΝ ΕΝΩΣΕΩΝ ΜΕΤΑΛΛΟΥ-ΠΥΡΙΤΙΟΥ (SILICIDES). ΜΕΤΑ ΤΗΝ ΠΑΡΑΣΚΕΥΗ, ΜΕ ΘΕΡΜΙΚΗ ΚΑΤΕΡΓΑΣΙΑ ΕΝ ΚΕΝΩ, ΤΩΝ ΛΕΠΤΩΝ ΥΜΕΝΙΩΝ ΤΩΝ ΕΝΩΣΕΩΝ ΜΕΤΑΛΛΩΝ-ΠΥΡΙΤΙΟΥ ΑΚΟΛΟΥΘΕΙ Η ΑΝΑΛΥΣΗ ΤΩΝ ΕΝΩΣΕΩΝ ΠΟΥ ΣΧΗΜΑΤΙΣΘΗΚΑΝ ΜΕ ΤΗΝ ΧΡΗΣΗ ΤΩΝ ΑΚΤΙΝΩΝ Χ, ΦΑΣΜΑΤΟΣΚΟΠΙΑΣ ΟΠΙΣΘΟΣΚΕΔΑΣΕΩΣ RUFFER FORD ΚΑΙ ΗΛΕΚΤΡΟΝΙΚΗ …
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Irradiation-induced nanoclusters and their evolution in compound forming ni-base and cu-base alloys
… Mo is highly immiscible in Cu and forms stable silicides with Si, Si-rich Mo-Si nanoclusters were induced by RT irradiation. These pre-irradiated alloys revealed remarkable thermal coarsening resistance, which I attribute to a narrow initial particle size distribution, and a significantly …
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TEM Study of a RTO Oxide-Interfacial Layer on Epitaxial-Cobalt Silicide (CoSi2) Formation
Metal silicides have been used for some time as a contact diffusion barrier. CoSi2 has been attracting a lot of interest due to its low sheet resistance, thermal stability, low stress state and interfacial uniformity with the silicon substrate. Recently, there has been many studies to investigate …
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A study of copper diffusion through Pd₂Si thin films
… study of the reactivity of copper with metal-silicides used in devices needs to be carried out. This study involves a dynamic RBS investigation of the reaction of copper with Pd₂Si films grown on Si<100> and Si<lll> substrates. It was found that copper diffused through the Pd₂Si layer and …
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Fundamental Understanding and Functionality of Silicon Oxycarbide
… temperatures, and the formation of nickel silicides was suppressed by the effect of water vapor during the pyrolysis. Our investigation showed the catalysts from transition metals induced the generation of metal silicides, silicon carbide, and turbostratic carbon with the catalytic activity …
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Cobalt silicide characterization
… which leads to degraded device performances. Silicides can reduce sheet resistance on poly-silicon lines and shallow junctions. The mostly widely accepted silicide process, Titanium Silicide (TiSi2), was adopted because of its low resistivity. Major limitations of TiSi2 include an inability to …
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Solid state interaction between thin metal films and SiO2 substrate.
… identified, whereas XRD showed that a mixture of silicides and oxides formed in the case of Ytterbium. In this study an extensive table of heats of formation for the silicides and oxides was compiled, from which heats of reaction could be calculated. The theoretical thermodynamic predictions were …
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Marker studies of nickel silicide formation
… solid state formation of thin films of nickel silicides (Ni2Si and NiSi) from nickel and amorphous silicon has been investigated using 31Si radioactive tracer and inert marker techniques. Samples were prepared by vacuum deposition of thin films of nickel and silicon, followed by thermal …
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Neutronic evaluation of GCFR core diluents and reflectors
… ZrS2, MoSi2 plus a variety of sulfides and silicides.
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Investigation of "conventional" superconductivity in ternary cerium compounds through high pressure studies
… in the cerium-containing ternary borides and silicides: CeRu(,3)B(,2), CeOs(,3)B(,2), and CeRu(,3)Si(,2). These are the only ternary cerium compounds where "conventional" (as opposed to heavy fermion) superconductivity has been observed to date;The closely related crystal structures (all …
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Design of Robust Heterogeneous Catalysts for Sustainable Chemistry
… of SiCN ceramics and the formation of metal silicides were addressed in the synthesis of Ni@SiCN materials. Controlled pyroylsis of Ni modified polysilazane at 600°C provided microporous Ni@SiCN materials, whereas at 1100°C the formation of nickel silicides in non-porous SiCN matrix was …
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Scanning tunnelling microscopy of metal reactions with silicon.
… was deposited on the surface to form a silicide. Silicides of cobalt and iron were grown from thin evaporated metal films, and the structures seen with the STM agreed \vith the results obtained previously by other groups using different techniques. In addition, two new effects were observed. …
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NMR and neutron total scattering studies of silicon-based anode materials for lithium-ion batteries
Silicon (in the form of lithium silicides) has almost ten times the theoretical charge storage capacity of graphite, the anode material used in most commercially-available lithium-ion batteries. Replacing graphite with silicon therefore promises a substantial improvement over the state-of-the-art …
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Microstructure and Electronic Structures of Er-Doped Si Nano-particles Synthesized by Vapor Phase Pyrolysis
… Neither Er precipitation, Er oxides or Er silicides were detected in any of the samples. The Er dopant concentration was about 2 atom% for doped samples from the 3.0 and 6.0 cm ovens as determined by quantitative analysis using X-ray energy dispersive spectroscopy. The average Si …
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