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Filtering by: Creator Frable, Benjamin W. Remove constraint Creator: Frable, Benjamin W. Committee Member Tate, Janet Remove constraint Committee Member: Tate, Janet

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  • Structure-property Relationships of Transition Metal Oxides Containing Precious Metals

    Creator:
    Hapuraja Pathirannehelage, Vidhara H. P.
    Abstract:
    This dissertation presents a study of structure-property relationships within 3d/4d metal oxides containing precious metals through detailed structure refinements using high-resolution neutron and X-ray diffraction data along with exploration of the resultant properties. Oxides of 4d or 5d transition metals tend to show new topological phases due to significant spin-orbit...
    Resource Type:
    Dissertation
    Full Text:
    opportunity to thank my close research mates Grace Lin, Ashjan Alharbi, and Benjamin Clark, for their

  • Consistent Histories Formulation of the Double-Slit Experiment

    Creator:
    Bauml, Benjamin N.
    Abstract:
    The standard interpretation of quantum mechanics (known as the Copenhagen interpretation) divides the world into quantum phenomena and classical observers that perform measurements upon the phenomena. This provides a quite functional framework for calculating probabilities of measurement outcomes, but it lacks the generality necessary for such things as retrodiction, and...
    Resource Type:
    Honors College Thesis
    Full Text:
    by Benjamin Noë Bauml A THESIS submitted to Oregon State University Honors College in partial

  • Investigation of the structural influence on the properties of functional inorganic oxides

    Creator:
    Laurita-Plankis, Geneva
    Abstract:
    While properties are extremely important from an application point of view, it is crucial to have a detailed understanding of the underlying structural influence. Once a concrete correlation between the structure and the observed property is established, rational design of novel materials with optimized properties can be realized. These optimized...
    Resource Type:
    Dissertation
    Full Text:
    Decker, Dr. Romain Berthelot, Dr. Jun Li, Dr. Rosa Grajczyk, and Dr. Benjamin Hanken. I would

  • Optical, electronic, and thermodynamic properties of layered mixed anion compounds

    Creator:
    Vielma, Jason Michael
    Abstract:
    Mixed anion compounds that form ZrCuSiAs-type crystal structures exhibit remarkable properties such as superconductivity at low temperatures, hole conduction with optical transparency in the visible region, and exciton absorption at room temperature. In this thesis, properties of a selected group of materials out of the very large set of mixed...
    Resource Type:
    Dissertation

  • Generating and using terahertz radiation to explore carrier dynamics of semiconductor and metal nanostructures

    Creator:
    Jameson, Andrew D.
    Abstract:
    In this thesis, I present studies in the field of terahertz (THz) spectroscopy. These studies are divided into three areas: Development of a narrowband THz source, the study of carrier transport in metal thin films, and the exploration of coherent dynamics of quasi-particles in semiconductor nanostructures with both broadband and...
    Resource Type:
    Dissertation
    Full Text:
    expressed as [41]: optTHz p w nn c l    (2.5.4) However, we must keep in mind that the

  • New luminescent materials and high-performance solution-processed oxide thin films

    Creator:
    Jiang, Kai
    Abstract:
    Crystals of an incongruent-melting compound, Ba₃MgSi₂O₈, were grown by the flux method and its structure was determined by single crystal X-ray diffraction methods. Ba₃MgSi₂O₈ crystallizes in trigonal space group P-3[bar]m1 with a = 5.6123(3) Å, c = 7.2667(9) Å and Z = 1. Eu²⁺ ions prefer one crystallographic Ba site...
    Resource Type:
    Dissertation
    Full Text:
    senior engineers who have strong science backgrounds, e.g. Benjamin Clark and Michael Greer, as a team

  • 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

  • High quantum-yield phosphors via quantum splitting and upconversion

    Creator:
    Jeong, Joayoung
    Abstract:
    The Gd3+ ion has been used to induce quantum splitting in luminescent materials by using cross-relaxation energy transfer (CRET). In Nd:LiGdF4, quantum splitting results from a two-step CRET between Gd3+ and Nd3+, first involving a transition 6G→6I on Gd3+ and an excitation within the 4f3 configuration of Nd3+ followed by...
    Resource Type:
    Dissertation
    Full Text:
    , Michael M. Lerner, William W. Warren, Jr., and John E. Baham for their encouragement in helping me to

  • Wide band gap semiconductors and insulators : synthesis, processing and characterization

    Creator:
    Hersh, Peter A.
    Abstract:
    The work presented here is focused on applying basic principles of solid-state chemistry to the study and development of new wide band-gap semiconductors and insulators for photovoltaic and electronic-device applications. Analysis of crystal structure, band structure, optical band gap, morphology and transport properties provides fundamental insight into materials performance as...
    Resource Type:
    Dissertation
    Full Text:
    refinement, John Donovan with electron probe microanalysis, Kurt Langworty with SEM, Benjamin Schmid with

  • 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:
    to propagate in order to lead the THz wave by one optical pulse duration and is given by optTHz w