Browsing Department of Physics by Title
Now showing items 67-86 of 197
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First Observation Of Dijet Events With An Antiproton Tag At [square root]s = 1.96 TEV Using The DØ Forward Proton Detector
(Physics, 2007-08-23)The Forward Proton Detector (FPD) is a new sub-system of the DØ detector, a 5000 ton particle physics detector located at the Fermilab Tevatron proton-antiproton collider. The FPD was implemented for the Tevatron Run II ... -
First Principles Computational Modeling Of The Surface Properties Of Uranium Dioxide
(Physics, 2014-07-14)The interaction of uranium dioxide (UO₂) with environmental elements occurs at its exposed surface and a fundamental understanding of this interaction process begins at the atomic scale. In this regard, atomic scale ... -
First Principles Study Of Ga-stabilized δ-Pu Bulk And Surfaces
Plutonium (Pu) metal is highly reactive toward environmental gases and corrodes at a high rate. Due to this inevitable process, containers used to store Pu-based materials may experience catastrophic failure, subsequently ... -
First Principles Study Of Properties Of The Oxidized Cu(100) And Cu(110)
(Physics, 2013-07-22)Copper based catalysts are of importance to a number of industrial processes including the synthesis of methanol, the reduction and decomposition of nitrogen oxides, and treatment of waste water. In copper catalysis surface ... -
First-principles prediction of enhanced magnetic anisotropy in FeCo alloys
(American Institute of PhysicsDepartment of Physics, The University of Texas at Arlington, 2008-02-04)The structural, electronic, and magnetic properties of FeCo alloys were studied by first-principles calculations. It has been found that the alloys prefer chemically noncubic geometries in a wide composition range. This ... -
FIRST-PRINCIPLES STUDIES OF THE LOW DIMENSIONAL TRANSITION METAL OXIDES
(2019-08-08)Transition metal oxides have drawn lots of attention from experimental and theoretical research due to their unique physical and chemical properties. Among them, the semiconducting α-Fe2O3 and TiO2 has been investigated ... -
FIRST-PRINCIPLES STUDIES ON THE PIEZOELECTRICITY AND FERROELECTRICITY OF KNN RELATED MATERIALS
(2020-08-13)Nowadays, with the increasing environmental concerns, K1-xNaxNbO3 (KNN)-based materials have gained enormous interest and attention as one of the most promising lead-free piezoelectric materials because of their excellent ... -
A First-principles Study On Bulk CuO: Electronic Structures And Native Point Defects
(Physics, 2007-08-23)In this thesis, we have performed a first-principles study on strongly correlated monoclinic cupric oxide (CuO) by using the LSDA+U method implemented in the PAW method. Based on the optimized structural parameters, which ... -
First-principles Study On Hard/soft SmCo5/Co(Fe) Nanocomposite Magnetic Materials
(Physics, 2008-09-17)More than a decade ago, exchange-spring permanent magnets containing soft and hard magnetic phases have been proposed to enlarge maximum energy product values through exchange coupling between the magnetically soft and ... -
A First-principles Study On The Enhancement Of Beryllium Doping In Gallium Nitride
(Physics, 2007-08-23)The excellent physical and electrical properties of Gallium Nitride (GaN) have made it a good candidate in light-emitting diodes and UV detecting semiconductor materials. However, GaN's p-type doping has long been a ... -
FUNCTIONALIZING SEMICONDUCTOR-CRYSTALLINE OXIDE HETEROSTRUCTURES FOR FUTURE APPLICATION IN ENERGY HARVESTING, SENSING, AND COMPUTING TECHNOLOGIES
(2019-08-26)Energy harvesting, sensing, and computing technologies utilizing conventional semiconductors have seen a plateau in their advancement for future applications. In order to address these issues, alternate materials are needed ... -
Fundamental Dynamical Equations For Two And Four-component Spinors In Galilean And Minkowski Space-time
(Physics, 2011-07-14)A search for new fundamental (Galilean and Poincaré invariant) dynamical equations for free elementary particles represented by spinor state functions is conducted in Galilean and Minkowski space-time. A dynamical ... -
Germanium Based Nanotubes: Fact Or Fiction?
(Physics, 2008-09-17)Unlike carbon nanotubes, nanostructures of Ge, a group IV semiconductor, have not been fully explored. In particular, there is limited data available on Germanium-based nanotubes. The aim of this thesis is to explore the ... -
GPU-based Monte Carlo Applications in Radiation Medicine
(2021-12-02)Radiation can be used to image tumor site or kill tumor cells noninvasively, playing an important role in tumor diagnosis and treatment. Because of the increasing burden that cancer brings to the society, there always ... -
Grain boundary contribution to recoil loop openness of exchange-coupled nanocrystalline magnets
(American Institute of PhysicsDepartment of Physics, The University of Texas at Arlington, 2009-04-29)It has been well known that recoil loop openness is related to soft-phase presence in exchange-coupled hard-soft nanocomposite magnets. Our study on recoil loop openness of exchange-coupled nanocrystalline magnets (both ... -
Habitability of Stellar Binary Systems
(2017-09-18)A comprehensive approach is provided to the study of habitable zones (HZs) for both S-type and P-type cases of stellar binary systems for both circular and elliptical orbits of the binary components, based on habitability ... -
Hard magnetic FePt nanoparticles by salt-matrix annealing
(AIP, 2006)To transfer face-centered-cubic (fcc) FePt nanoparticles to the face-centered-tetragonal (fct) phase with high magnetic anisotropy, heat treatments are necessary. The heat treatments lead to agglomeration and sintering of ... -
High thermal stability of carbon-coated L10-FePt nanoparticles prepared by salt-matrix annealing
(AIP, 2008)Monodisperse L10-FePt nanoparticles with size ranging from 3 to 8 nm were prepared by the salt-matrix annealing method. It was observed that the annealed particles have high thermal stability—no sintering occurred even ... -
High thermal stability of carbon-coated L1[subscript]0-FePt nanoparticles prepared by salt-matrix annealing
(Institute of Applied PhysicsDepartment of Physics, The University of Texas at Arlington, 2008-02-08)Monodisperse L10-FePt nanoparticles with size ranging from 3 to 8 nm were prepared by the salt-matrix annealing method. It was observed that the annealed particles have high thermal stability—no sintering occurred even ... -
Holographic Patterning Of Polymer Dispersed Liquid Crystal Materials For Diffractive Optical Elements
(Physics, 2007-08-23)Liquid crystals are a soft condensed matter phase that share properties with both isotropic liquids and crystalline solids. Composite materials formed from both low molecular weight liquid crystals and polymers are of both ...