Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 103 for “"Electronic Transport"”.
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Electronic transport of graphene devices
This thesis represents mainly investigations of electronic transport of graphene devices. First of all, the surface property of graphene has been studied in order to make better contacts between graphene and metal. Electrical properties of graphene are investigated. Reproducible current hysteresis …
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Electronic Transport in Thermoelectric Bismuth Telluride
<p>An experimental investigation of the electronic transport properties of bismuth telluride nanocomposite materials is presented. The primary transport measurements are electrical conductivity, Seebeck coefficient and Hall effect. An experimental apparatus for measuring Hall effect and electrical …
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Electronic transport in CdSe quantum dot arrays
… confinement energy also becomes large, the electronic states on the dot become discrete, and the island is called a quantum dot, or sometimes an artificial atom. Quantum dots have been a focus of active research for the past decade, both as model systems for exploring physics, and as the …
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Electronic transport in atomically thin layered materials
Electronic transport in atomically thin layered materials has been a burgeoning field of study since the discovery of isolated single layer graphene in 2004. Graphene, a semi-metal, has a unique gapless Dirac-like band structure at low electronic energies, giving rise to novel physical phenomena …
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Numerical calculations for electronic transport through molecular systems
… Arbeit ist die Beschreibung von Ladungstransporteigenschaften molekularer Systeme, wenn diese das Verbindungsstück zweier Elektroden bilden. Einen technologischen Meilenstein setzte auf diesem Gebiet die Rastertunnelmikroskopie, welche ursprünglich für die Abbildung von Oberflächen mit …
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Synthesis and Electronic Transport of Natural Superlattice Compounds
… periodicity led to the modern understanding of electronic properties through the band structure. Advances in materials synthesis and discovery have led to precise control over electronic properties via control of the atomic structure. One family of materials in which this has been explored are …
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Electronic transport in low-angle twisted bilayer graphene
… is a two-dimensional material with exotic electronic, optical and mechanical properties. By stacking two layers of graphene together with a small rotation angle between them, a superlattice of arbitrarily large size can be formed. The hybridization of the electronic states in the two layers …
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Quantum electronic transport in atomically layered topological insulators
… the notion of topological insulators (TIs) for electronic systems. For the time-reversal invariant TIs, a key aspect is the "helical" mode at the boundary of the system - that is, the ID edge of a 2D topological insulator or the 2D surface of a 3D topological insulator. These helical modes …
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Electronic transport properties of thin films of amorphous silicon
… films of amorphous Silicon, and to evaluate the electronic transport properties of the material prepared over a wide range of deposition conditions, and (iii) to investigate the electronic transport properties of thin films of co-sputtered Silicon-Aluminium and Silicon-Antimony, and to evaluate …
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Electronic transport and structure of a surface quantum well
… grown on GaSb buffers, characterizing their electronic properties and preparing measurements of the proximity effect in the wells. While electrons in the InAs surface quantum wells are scattered more than those buried InAs quantum wells, an electron mean free path approaching 100~nm was …
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Electronic Transport in Highly Mismatched InAs Films on GaAs
… by MOCVD were studied by performing magneto-transport measurements at different temperatures, from 300 K down to 1.2 K. The longitudinal magnetoresistance and Hall effect indicate a three-band system existing in n-type (p-type) InAs, which consists of the surface accumulation (inversion) …
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The electronic transport properties of undoped and doped arsenic triselenide
The electronic and transport properties of doped and undoped arsenic triselenide have been characterised in an extensive study. Measurement of optical absorption, d.c, conductivity, thermoelectric power and fast charge transient photoconductivity were made. In addition, an improved time of flight …
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Electronic transport and magnetic properties of disordered high-Tc materials
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1996.
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Assessing electronic transport in solid materials via the fluctuation-dissipation theorem
For the first-principles evaluation of electronic heat and charge transport coefficients, the Kubo-Greenwood formalism represents an appealing alternative to perturbative approaches, since it naturally incorporates all orders of anharmonic and vibronic effects. In practice, however, Kubo-Greenwood …
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Fabrication and Electronic Transport Properties of Underdoped High Temperature Superconductor Nanowires
… in the high-Tc cuprates, we have measured the electronic transport properties of underdoped, high-Tc nanowires and nanostructures. The sizes of the samples involved allow for the investigation of the electronic structure on a mesoscopic length scale. We have measured current-voltage …
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Fabrication and Electronic Transport properties of Underdoped High Temperature Superconductor Nanowires
… in the high-Tc cuprates, we have measured the electronic transport properties of underdoped, high-Tc nanowires and nanostructures. The sizes of the samples involved allow for the investigation of the electronic structure on a mesoscopic length scale. We have measured current-voltage …
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Electronic transport and photoconductive properties of resorcinol-formaldehyde-based carbon aerogels
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1995.
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Electronic transport properties of carbon nanotubes: the impact of atomic charged impurities
… of carbon nanotubes, which defines their unique electronic properties. This difference had not directly measured experimentally because of the issue of contact resistance, the difficulty of chirality identification, and the uncertainty in the number of impurity atoms introduced on carbon …
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SPIN CIRCUIT REPRESENTATION OF ELECTRONIC TRANSPORT IN MATERIALS WITH SPIN ORBIT COUPLING
… and phenomena featuring both spin and charge transport. SPICE compatible spin circuits with 4-component voltage and current (1 for charge and 3 for spin) have been developed to represent this emerging class of devices. However there has not been much work on circuit representation for …
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