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A numerical model for describing charge accumulation in electron-beam irradiated low density polyethylene has been put forward recently. It encompasses the generation of positive and negative charges due to impinging electrons and their transport in the insulation. However, the model was not...
The dewetting behaviors of cobalt (Co), cobalt palladium (CoPd), and palladium (Pd) thin films on oxidized silicon substrates were examined. We observed the formation of craters in the oxide layer and pits in the Si substrate for larger CoPd or Pd catalyst particles and thinner oxide. Nanowires...
Negative differential resistance (NDR) and bistability in the current-voltage ( I-V ) characteristics have been demonstrated for a simple device fabricated from ZnO nanoparticles (NPs). The Au/ZnO/Au device (ZnO nanoparticles size: 5–15 nm) attains ON and OFF states during forward and reverse...
The pressure induced amorphization of the negative thermal expansion material cubic ZrMo 2 O 8 was examined in situ within a diamond anvil cell, using high energy x-ray total scattering, during compression up to ∼7.2 GPa, and then decompressed. The amorphization upon compression was largely...
Carrier dynamics in CdTe:Cl single crystals grown by the modified physical vapor transport method were studied by means of photocurrent transient measurements. The effective electron lifetime was determined by fitting of the decay parts of the experimental photoconductivity curves with...
A two-dimensional, solid/solid phononic crystal (PC) comprised a square array of steel cylinders in epoxy is shown to perform a variety of spectral, wave vector, and phase-space functions. Over a range of operating frequencies, the PC’s elastic band structure shows uniquely shaped equifrequency...
Diamond like carbon (DLC) thin films, used as excellent solid lubricant, are grown on Si substrates at temperatures in the range of 100–600 °C using pulsed direct current magnetron sputtering to understand the role of substrate temperature on the tribological properties. Friction tests have...
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