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Filtering by: Creator Wilder, Benjamin T. Remove constraint Creator: Wilder, Benjamin T. Academic Affiliation Physics Remove constraint Academic Affiliation: Physics Decade 2000-2009 Remove constraint Decade: 2000-2009

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  • A theoretical description of anisotropic chemical association and its application to hydrogen-bonded fluids

    Creator:
    Peery, Travis B.
    Abstract:
    The thermodynamic and structural effects of highly anisotropic, short-ranged attraction are investigated for single- and four-site interaction models using Wertheim's multi-density graph theory of chemical association. Both models consist of associating hard spheres, where the saturable attraction sites are described by conical wells centered in the hard core and evaluated...
    Resource Type:
    Dissertation
    Full Text:
    approved: Glenn T. Evans The thermodynamic and structural effects of highly anisotropic, short- ranged

  • Generation and manipulation of THz waves

    Creator:
    Amer, Naaman
    Abstract:
    In this thesis I studied several THz components that can be used for potential THz technology. THz waves were generated in nonlinear medium via optical rectification of femtosecond optical pulses. Utilizing the phase matching condition between the optical and THz waves in a ZnTe crystal, single-cycle broad-band THz pulses were...
    Resource Type:
    Dissertation
    Full Text:
    ) 01 = ∂ ∂ +×∇ t B c E (1.1.3) J ct D c H π41 = ∂ ∂ −×∇ (1.1.4) B is the magnetic induction

  • Transport properties of CuSc₁₋(subscript x)Mg(subscript x)O₂₊(subscript y) and BaCu₂S₂ transparent semiconductors

    Creator:
    Kykyneshi, Robert
    Abstract:
    Bulk properties of CuSc₁₋ₓMgₓO₂, CuSc₁₋ₓMgₓO₂₊y, BaCu₂S₂, Bai₁₋ₓKCu₂S₂, BaCu₂Se₂ and Bai₁₋ₓKₓCu₂Se₂ are investigated supporting the search for highly conductive p-type thin films. Mg is an efficient dopant in CuScO₂ with conductivity up to l.5.10⁻² S/cm. Oxidation of CuScO₂:Mg leads to further increase in conductivity up to 0.5 S/cm. The amount of...
    Resource Type:
    Masters Thesis
    Full Text:
    , Benjamin Nielsen, Dara Easley, Paul Newhouse, and James Osborn for creating a friendly work environment

  • SU(2) tetrahedron flux distribution few body effect in lattice QCD

    Creator:
    Zhang, Zhongming
    Abstract:
    We study the four-quark interaction as a first step in understanding the QCD origin of the nuclear force in nature. We simulate QCD on a 20 x 20 x 20 x 32 space-time lattice with the simplifying quenched and static approximations, and with the SU(2) gauge group. Recent four-quark simulations...
    Resource Type:
    Dissertation
    Full Text:
    APPROVED: representing Physics Chair of t*bepartment of Physics Dean of tli brauate School I understand

  • Hartree-Fock electronic structure calculations forfree atoms and immersed atoms in an electron gas

    Creator:
    Walsh, Kenneth Charles
    Abstract:
    Electronic structure calculations for free and immersed atoms are performed in the context of unrestricted Hartree-Fock Theory. Spherical symmetry is broken, lifting de-generacies in electronic configurations involving the magnetic quantum number m. Basis sets, produced from density functional theory, are then explored for completeness. Com-parison to spectroscopic data is done...
    Resource Type:
    Dissertation
    Full Text:
    energy, T̂ . Ĥ = T̂ = − −→∇2 2m (2.3) Exact solutions to the problem of a free particle with kinetic

  • Breaking of spherical symmetry in electronic structure, free and immersed atoms in an electron gas

    Creator:
    Dorsett, Skye Forrest
    Abstract:
    Total electronic energies are calculated numerically for free and singly-ionized He, Li, C, and Ne atoms using density functional theory. Immersion energies are calculated for a single C impurity atom embedded or absorbed into a charge-neutral system composed of a free-electron gas with uniform positive background, also called 'jellium'. Nonspherical...
    Resource Type:
    Dissertation
    Full Text:
    potential v(r), is gov- erned by the Hamiltonian Ĥ = T̂ + V̂ + Ŵ (2.1) where T̂ is the kinetic energy

  • Time-of-flight direct recoil spectrometry : application to liquid surfaces and steps toward quantification

    Creator:
    Tassotto, Michael
    Abstract:
    Liquid surfaces are very abundant in nature. Despite the importance of the liquid interface in general, experimental molecular-level data was almost completely lacking prior to the last decade and a half. The intent of this work is to provide a means by which experimental data on the composition of liquid...
    Resource Type:
    Dissertation
    Full Text:
    received numerous, tremendously helpful electronic communications from Dr. Mark T. Robinson, formerly of