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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 252 for “"Hall effect"”.
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Hall Effect in Insulating Photoconductors
Made available in DSpace on 2015-05-12T17:11:45Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 0006974.PDF: 5827663 bytes, checksum: f653ba58295d9ef9a3b12caea9d2074d (MD5) Previous issue date: 1953
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Photoconductive Hall Effect in Silver-Bromide
Made available in DSpace on 2015-05-12T17:03:35Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6000154.PDF: 6649328 bytes, checksum: db65870389c4e3851c253871df35cdb1 (MD5) Previous issue date: 1959
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Hall effect in printed Nanoparticulate Silicon Networks
… was produced with linseed oil. A home-built Hall measurement system was used to characterise layers of doped ink, for which a complete carrier type reversal was observed. Based on the result of elemental mapping, two possible models were suggested to explain the doping effect. A …
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Investigations of the quantum Hall effect in graphene
… of this thesis is to understand the quantum Hall effect in graphene. In particular, we investigate the occurrence of various crystalline phases in the first three Landau levels; we determine which crystalline structure is energetically favorable as the filling factor is varied. In this …
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Microscopic computations in the fractional quantum hall effect
The microscopic picture for fractional quantum Hall effect (FQHE) is difficult to work with analytically for a large number of electrons. Therefore to make predictions and attempt to describe experimental measurements on quantum Hall systems, effective theories are usually employed such as the …
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Fully-kinetic PIC simulations for Hall-effect thrusters
… numerically modeled the near-anode region of a Hall thruster in attempts to better understand the associated physics of thruster operation. Originally, simulations assumed a continuum approximation for electrons and used magnetohydrodynamic fluid equations to model the significant processes. …
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Imaging transport resonances in the quantum Hall effect
We image charge transport in the quantum Hall effect using a scanning charge accumulation microscope. Applying a DC bias voltage to the tip induces a highly resistive ring-shaped incompressible strip (IS) in a very high mobility 2D electron system (2DES). The IS moves with the tip as it is scanned, …
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Projections and correlations in the fractional quantum Hall effect
… surprising experimental discovery, the quantum Hall effect remains one of the most active and interesting fields of research in condensed matter physics. The theory pertaining to the phenomenon comprises a hugely varied and fascinating body of work, incorporating frameworks such as variational …
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Frequency-Dependent Hall Effect in Normal and Superconducting Metals
Made available in DSpace on 2015-05-12T17:12:24Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6101646.PDF: 1943195 bytes, checksum: 4884751c0b4accb236de8b7a1d2510b4 (MD5) Previous issue date: 1961
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A field theory for the fractional quantum Hall effect
… field theory approach to the Fractional Quantum Hall Effect (FQHE). The goal is to develop a field theory for a system of interacting electrons moving in a plane in the presence of an external magnetic field, in the hope that the FQHE states will appear naturally as the semiclassical states of …
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Hall effect in untwinned single-crystal superconducting YBa2Cu307-y
We measured the Hall effect in untwinned single-crystal YBa2Cu3o7_Y, a high-Tc superconductor. The crystals were grown using a technique that we invented, in which untwinned domains are produced naturally without applying stress to the sample. The Hall effect measurements were directed at …
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PIC simulation of a ceramic-lined Hall-effect thruster
A full Particle-In-Cell code, written by James Szabo [23], was used to model a 50W TAL and 3kW SPT thruster. This code treats single and double ions, neutrals and electrons as particles, moved forward by a leapfrog algorithm at each timestep, matching the lowest of the plasma and the cyclotron …
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Automated Variable Temperature Hall Effect Measurements and Analysis of N-Type Gallium-Arsenide, Indium-Phosphide and Their Lattice Matched Alloy Semiconductors (Hall Effect)
… background to the theoretical analysis of Hall effect carrier concentrations and mobilities in n-type GaAs, InP, and their related direct gap semiconductor alloys is presented along with a thorough treatment of those factors affecting the measurement. The design and construction of the …
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Anomalous Hall Effect in Calcium -Doped Lanthanum Cobaltite and Gadolinium
The Hall resistivity, magnetoresistance, and magnetization of a Gadolinium single crystal were measured in fields up to 30 T. Cobaltite films were grown via laser ablation and characterized by a variety of techniques. Hall resistivity, magnetoresistance, magnetization, and magnetothermopower of L …
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Anomalous Hall Effect in Calcium-doped Lanthanum Cobaltite and Gadolinium
Made available in DSpace on 2012-06-28T21:43:37Z (GMT). No. of bitstreams: 1 Baily_Scott.pdf: 3760245 bytes, checksum: 7239169ba2ec52f9b0a9c55d7519bb1e (MD5) Previous issue date: 2003
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Parallelization of particle-in-cell simulation modeling Hall-effect thrusters
MIT's fully kinetic particle-in-cell Hall thruster simulation is adapted for use on parallel clusters of computers. Significant computational savings are thus realized with a predicted linear speed up efficiency for certain large-scale simulations. The MIT PIC code is further enhanced and updated …
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