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Showing 1 to 20 of 622 for “"Insulator"”.
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Metal-insulator-insulator-metal plasmonic waveguides and devices
Metal-insulator-metal (MIM) plasmonic waveguides have been proposed for highly integrated subwavelength structures. In this work, waveguiding and coupling of surface plasmon polaritons (SPPs) within finite planar MIM plasmonic waveguides are examined both theoretically and experimentally. Gain …
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Insulator-insulator Contact Charging As A Function Of Pressure
Metal - metal and to an extent metal - insulator contact or triboelectric charging are well known phenomena with good theoretical understanding of the charge exchange mechanism. However, insulator – insulator charging is not as well understood. Theoretical and experimental research has been …
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High-bias studies on metal-insulator-metal and metal-insulator-semiconductor tunnel junctions
"Tunnel junctions were fabricated oil the grown-oxides of both cleaved single-crystal silicon and evaported aluminum and have been studied over a wide bias range. At low biases the previously reported inelastic and selfenergy structure is observed, while at intermediate biases tunneling into …
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Germanium on insulator fabrication technology
… continue to improve performance. Germanium on insulator is proposed as it combines both a high mobility material (relative to silicon) and a structure with improved scaling characteristics compared to bulk devices. The goal of this work is to develop of procedure for the transfer of a germanium …
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SiGe-on-insulator and strained-Si-on-insulator for strained-Si CMOS and nanocrystalline-Ge waveguides
SiGe-on-insulator (SGOI) and strained-Si-on-insulator (SSOI) substrates combine both the benefits of a high-quality, monocrystalline SiGe or strained-Si surface layer with the advantages of an insulating substrate. In particular, many electronic and photonic devices are greatly enhanced by the use …
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Insulator -Superconductor Transitions in Two Dimensions
In the fifth part we analyze the behavior near the 2D IST in the presence of a perpendicular magnetic field. We show that with increasing field H, the QD and QC regimes, in which vortex degrees of freedom are suppressed, crossover to a new magnetically activated (MA) regime, where the correlation …
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Insulator-Superconductor Transitions in Two Dimensions
… on the charge transport properties near the insulator-superconductor transition (IST) points in two dimensions. The first part is devoted to the description of the relevant experiments that motivated our work. After introducing the techniques necessary to handle the description near the IST, …
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Disordered insulator in an optical lattice
Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2011-06-06T13:19:51Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Pasienski_Matthew.pdf: 17424692 bytes, checksum: bd55e794d41bd87dbf146fd3dd4617ce (MD5)
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Laboratory investigation of insulator contamination problems
… of the laboratory examination of contaminated insulators. A technique which gives a pollution curve for cylindrical insulator models is described. The technique is later extended to apply to practical insulator shapes, giving curves which can be used to assess insulator performance. A method of …
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Metal-insulator transitions in Mott insulators.
Thesis. 1978. Ph.D.--Massachusetts Institute of Technology. Dept. of Physics.
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Embedded Passivated-electrode Insulator-based Dielectrophoresis
… technique called embedded passivated-electrode insulator-based dielectrophoresis (EπDEP) for preconcentration, separation, or enrichment of bioparticles, including living cells. This new method combines traditional electrode-based DEP and insulator-based DEP with the objective of enhancing the …
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Extreme-submicrometer silicon-on-insulator (SOI) MOSFETs
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.
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Embedded Passivated-Electrode Insulator-Based Dielectrophoretic Chromatography
The detection and identification of particles within fluid samples is key in the prevention of the spreading of disease. This has created a growing need for devices able to successfully separate and identify multiple particles for this purpose while operating at a high enough throughput to be …
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FeSb2: a riddle, inside an insulator, wrapped in a metal Electric and magnetic properties of the unconventional insulator iron diantimonide
The distinction between metals and insulators forms a fundamental tenet of condensed matter physics. Over the past decade or so, the explosion of interest in topological insulators – materials that host a metallic surface state atop their insulating bulks – has demonstrated how the contrasting …
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Functional Roles of the Drosophila gypsy Insulator Components
… the molecular mechanism underlying chromatin insulator activities, we focus our studies on one of the best understood insulators, the gypsy insulator of Drosophila. The gypsy insulator functions through its binding protein complex, which include Su(Hw), Mod(mdg4), Cp190 and other interacting …
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Photoemission Spectroscopy Studies of New Topological Insulator Materials
… the electron band structures. The topological insulator phase yields an exotic metal surface state in which the orientation of the electron’s spin is locked perpendicular to its momentum. This property suppresses backscattering (making it possible to pass spin-polarized currents through the …
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Superconductor -Insulator Transition in Quasi-One-Dimensional Nanowires
… technique. A well-defined superconductor-insulator transition (SIT) is observed in homogeneous wires with lengths less than ∼200 nm. The total normal state resistance of the wire is found to be the control parameter for this transition with the critical point occurring near the quantum of …
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Superconductor-insulator transition in quasi-one-dimensional nanowires
… technique. A well-defined superconductor-insulator transition (SIT) is observed in homogeneous wires with lengths less than ~200 nm. The total normal state resistance of the wire is found to be the control parameter for this transition with the critical point occurring near the quantum of …
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Exploration of crystallographic defects in topological insulator metamaterials
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2023-12-01
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Quantum Computation in Ultra-thin Topological Insulator Films
… computation. The recently discovered topological insulator (TI) has been proposed as a useful material potentially for spintronics and quantum computation owing to its unique topologically-protected surface states. In this thesis, we will investigate theoretically and numerically whether it is …
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