نتایج جستجو برای: electron beam evaporation
تعداد نتایج: 420104 فیلتر نتایج به سال:
Aluminum thin films with thicknesses between approximately 10 and 60 nm have been deposited by evaporation sputtering techniques. Layer characterization focused on reflectance, optical constants, surface quality. Reflectance fits performed using a merger of three standard dispersion models, namely the Drude model, Lorentzian oscillator beta-distributed model. A thickness dependence constants co...
The objective of this project is to fabricate and characterize nanoscale hybrid tunnel-junction structures that will reveal new physical aspects of the spin-dependent quantum states and dynamic behavior of single electrons. Several interesting effects have been predicted for spindependent transport in ferromagnet (FM)/metal/ferromagnet and FM/superconductor/FM double junctions. One goal is expe...
Previous studies have demonstrated greater functions ofosteoblasts (bone-forming cells) on nanophase compared with conventional metals. Nanophase metals possess a biologically inspired nanostructured surface that mimics the dimensions of constituent components in bone, including collagen and hydroxyapatite. Not only do these components possess dimensions on the nanoscale, they are aligned in a ...
The optical and electrical properties of terbium(III) bis(phthalocyanine) (TbPc2) films on cobalt substrates were studied using variable angle spectroscopic ellipsometry (VASE) and current sensing atomic force microscopy (cs-AFM). Thin films of TbPc2 with a thickness between 18 nm and 87 nm were prepared by organic molecular beam deposition onto a cobalt layer grown by electron beam evaporation...
I discuss issues related to charmonium production, in view of physics possibilities at a 15. .. 30 GeV continuous beam electron facility. High energy photo-and hadroproduction of heavy quarkonia presents several challenges to QCD models concerning cross sections, polarization and nuclear target dependence. Theoretical approaches based on color evaporation as well as on color singlet and color o...
The spatially distributed microstructures needed to implement many functionally graded material (FGM) designs are difficult to realize affordably with today's materials synthesis/processing technologies. To address this need, a new directed vapor deposition (DVD) technique has been developed and explored as a potential FGM synthesis tool. The technique exploits supersonic helium jets in combina...
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