Materials Literature
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The field of semiconductor spintronics has pursued the development of novel device architectures exploiting the spin degree of freedom in addition to, or in place of, traditional charge based functionality. In particular, theoretical modeling has predicted that the addition of a magnetic base layer to a bipolar juncti…
In this paper is illustrate the dielectric characteristics of a nanocomposite polymer matrix based on polypropylene (PP) with insertion of multi-walled carbon nanotubes (MWCNTs). The dielectric characteristics analyzed are the real and imaginary part of permittivity, dielectric losses and electrical conductivity of th…
Under strain rate of 0.5s-1, the effect of deformation temperature on flow stress, microstructure and corrosion resistance of 2205 duplex stainless steel (DSS) was investigated. The dynamic recrystallization (DRX) of austenite phase was enhanced with the deformation temperature increasing from 850°C to 1050°C, meanwhi…
In this paper, highly luminescent core/shell CdSe/ZnS quantum dots have been used in the construction of two sensing systems for the detection of oligonucleotide hybridization and enzymatic reaction by covalent binding the biomolecules directly to the surface of the quantum dots. It is shown that the oligonucleotide-m…
Using conventional AlGaN/GaN HEMT structures that typically deliver normally-on (or depletion-mode) operation, a novel metal-2DEG tunnel junction FET has been successfully demonstrated. The AlGaN/GaN heterojunction delivers high-density 2DEG without any intentional doping, allowing the formation of a thin tunnel barri…
The processing equipment for near-net shape technology of materials is introduced in the paper. According to analysis of industrialized processing equipment and technology testing equipment for difficult-to-cut alloy materials, combined with difficulties in strip casting and features of difficult-to-cut alloy material…
We present the first flexible micro-lens arrays designed for photovoltaic modules that utilize fluorine-based film. These micro-lens are fabricated as a key component of increasing electric generation in the fluorine-based film. The rigorous coupled wave analysis (RCWA) method was used for optical simulation. The simu…
Plastic strain localization and fracture of dynamically loaded metallic samples occurred during plug formation are investigated. These processes are closely related to the instability of plastic flow and can be attributed to structural-scaling transitions in mesodefect ensembles. The multiscale nature of defect struct…
We investigate the topological phase transition in ultrathin films of three-dimension topological insulators, induced by a rotation of the exchange field. It is found that, as the exchange field rotates from the vertical to the horizontal orientation, there is a topological phase transition from a quantum anomalous Ha…
This study examines the twist design of chenille yarns from theoretical consideration. Four kind of chenille yarns were selected for practice validation. The results indicate that there was little deviation between the twist under theoretical approach and the actual tested values; linear density of centre yarn and pil…
In this work, we studied the nickel germano-silicide formation on thin SiGe layers epitaxially-grown on silicon substrate. Single crystal NiSiGe film with a thickness of 5.5nm was formed at 400°C and showed a low specific resistance of 30uΩcm. A thicker NiSiGe layer resulted from a thicker Ni showed poly-crystalline s…
This work is entitled to study the effect of hydrostatic extrusion, for different extrusion ratios on the mechanical properties of the extruded Al and Al/SiCPcomposites. An experimental hydrostatic extrusion device is designed and constructed for that purpose. Billets of Al and Al-SiCpcomposites with initial diameters…
This paper demonstrates characteristics of an oscillation of an attached bubble in ultrasonic field, compared with a free bubble. First, we experimentally investigated the resonant frequency of the attached bubble with radius of 50 - 250 μm, based on the analysis of steady or transient oscillation. The incident freque…
CuBr2 reacts with the Schiff base 4-bromo-2-[(pyridin-2-ylmethylimino)methyl]phenol (HL) and ammonium thiocyanate in absolute methanol to give the mononuclear copper(II) complexes [CuBrL] (1) and [CuL(NCS)] (2). Both complexes were characterized by elemental analysis, IR spectra, and single-crystal X-ray determination…
Since its discovery in 2004, graphene, a two-dimensional (2D) crystal of sp2-bonded carbon arranged in a honeycomb lattice, has rapidly emerged as an intriguing material for a broad spectrum of applications in nano-devices. Given its exceptional carrier transport characteristics, excellent thermal conductivity, and ro…
In this paper, we evaluate the influence of Quantum Confinement and Coulomb Blockade on the retention characteristics of charge trapping memory with incorporating Si nanocrystals into the charge trapping layer using the self-consistent simulator we developed. The effects of Quantum Confinement and Coulomb Blockade und…
In the present work the electrical properties of AlN polycrystalline films deposited at low temperatures by plasma-assisted molecular beam epitaxy (PA-MBE) are investigated. The polarization build-up during constant current injection as well as the depolarization process after the current stress have been investigated…
2012 Digest APMRC - Asia-Pacific Magnetic Recording Conference: A Strong Tradition. An Exciting New Look!
A Sn-SnO2/C nanocomposite was synthesized using the electrospinning method. Thermal analysis was used to determine the content range of Sn and SnO2 in the composite. The composite was characterized by X-ray diffraction, and the particle size and shape in the Sn-SnO2/C composite were determined by scanning and transmis…
RESUMEN: En este trabajo se evaluó el comportamiento electroquímico de esponjas metálicas de aluminio mediante técnicas electroquímicas como curvas de polarización y espectroscopia de impedancia electroquímica. Se realizaron ensayos en soluciones de NaCl de diferente concentración y bajo condiciones hidrodinámicas. La…