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Browse Dissertations and Theses  Physics by Title
Now showing items 408427 of 1867

(1989)Using an envelope function model, we have calculated the valence band structures in quantum wells and superlattices. It is found that the valence bands exhibit very complicated structures. With the newly devised method and ...
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(1971)The electroreflectance spectrum of ntype gallium arsenide in the 1.2  5.3 eV photon energy range has been measured. The 6e l and 6e2 l1neshapes of six different critical points were analyzed in detail by fitting the ...
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(197102)The band structure of germanium in the energy region .7 eV to 5 eV was investigated using the electroreflectance (ER) technique. Several transitions were detected in this energy range and in almost all cases, the associated ...
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(1973)
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(20130203)I present research in the aggregation and selfassembly of charged macromolecules. This work aligns along three themes. The first theme is the effective interactions and aggregation of rodlike polyelectrolytes. The ...
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(1987)A theoretical study is presented of the elementary excitations in heavyfermion superconductors, under the hypothesis that the Cooper pairs are in a relative pwave or dwave. First, all pwave and dwave states are ...
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(1991)We examine methods to improve the major numerical difficulties in lattice field theory. Traditional Metropolis and heat bath Monte Carlo methods in lattice calculations break down whenever one tries to calculate thermodynamic ...
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(1991)We examine methods to improve the major numerical difficulties in lattice field theory. Traditional Metropolis and heat bath Monte Carlo methods in lattice calculations break down whenever one tries to calculate thermodynamic ...
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(20140530)Superconductivity (SC) in socalled “unconventional superconductors” is nearly always found in the vicinity of another ordered state, such as antiferromagnetism, charge density wave (CDW), or stripe order. This suggests a ...
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(Department of Physics. College of Engineering. Graduate College. University of Illinois at UrbanaChampaign., 1970)Some new techniques have been used to study the physical properties of sulfur centers in silicon. These techniques make use of the effects of the sulfur centers on the depletion region properties of a reversebiased PN ...
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(20051010)Carbon nanotubes are building blocks of the fastdeveloping nanotechnology that leads to revolutionary breakthroughs in material science and engineering. The extraordinary mechanical, electrical, and optical properties of ...
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(20130524)Significant obstacles remain for the fabrication of germanium nMOSFETs, including enhanced diffusion of donor atoms which leads to electrical deactivation. The preferential generation of selfinterstitials via proton ...
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(1973)The energydensityenergydensity correlation function is studied in the threedimensional Ising model in zero external field, for various spins on the fcc lattice. An extension of the linkedcluster technique is used to ...
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(20110121)We propose a method to study various defects using an energy density formulation in density functional theory. Unlike traditional total energy methods that find a single energy as the difference between two calculations, ...
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(1970)9Be , llB, 25Mg and 27Al targets have been bombarded with the He beam from the University of Illinois cyclotron. The angular distributions for the (3He ,t) charge exchange reaction have been obtained for 9Be at 20.2, ...
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(2001)The symmetry breaking between ABC and ACB stacking twins in the growth of Cu3Au (111) thin films on Nb (011) is investigated. Nb films, similar to the buffer layers upon which Cu3Au is grown, are studied with low energy ...
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(1968)A differential equation for meson states is derived from the BetheSalpeter equation under the conditions of the quark model. The equation is shown to imply mass relations of the form K* 2  P2 = K2 2  1£ • The equation ...
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(2000)The Interstitialcy Theory offers a unified description of the solid, liquid, and amorphous states of condensed matter, including a direct criterion for the onset of melting. A major prediction of the theory is that the ...
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(1992)The equilibrium shape of NaCl single crystals has been studied by xray reflectivity measurements at high symmetric surfaces. The equilibrium shape of a crystal is related to the properties of its surfaces through its ...
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Now showing items 408427 of 1867