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Filtering by: Creator Shannon, Ceili T. Remove constraint Creator: Shannon, Ceili T. Advisor Subramanian, Munirpallam A. Remove constraint Advisor: Subramanian, Munirpallam A.

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  • Substitution Effects on the Structure and Electronic Behavior of Ternary Precious Metal Oxides

    Creator:
    Flynn, Joshua
    Abstract:
    Due to the high cost of precursor materials, complex oxides of 4d and 5d transition metals are under-studied compared to their 3d counterparts. Recent studies have shown that oxides containing heavier transition metals can exhibit exotic electronic states due to presence of strong spin-orbit coupling. The goal of this dissertation...
    Resource Type:
    Dissertation
    Full Text:
    . Antiferromagnetic behavior was observed in 𝜒(𝑇) data for CoRh2O4 (𝑇N = 24.9(1) K, 𝜇eff = 4.42(1) 𝜇B) and

  • 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:
    transport data is well fitted to a ρ(T) = ρ0𝑇−𝜈 relationship opposed to the Arrhenius behavior and is

  • 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:
    provided amorphous samples for analysis, and T. J. Mustard, Dr. Benjamin Hanken, and Dr. Paul Cheong

  • Exploratory Studies Within the Exotic Lyonsite Structure

    Creator:
    Tang, Joseph N.
    Abstract:
    Structure-property relationships have always underpinned the field of solid state chemistry; dependable structural descriptions are integral to understanding and controlling the physical properties of inorganic compounds old and new. While a handful of crystal structures are celebrated for their versatility, flexibility, and functionality, the existence of more exotic structures is...
    Resource Type:
    Dissertation
    Full Text:
    indicated Curie-Weiss behavior in the high T region, confirming the presence of Co2+. Diffuse reflectance

  • Synthesis and investigation of layered oxides with honeycomb ordering

    Creator:
    Schmidt, Whitney L.
    Abstract:
    Synthesis and discovery lies at the core of every field in chemistry. The investigation of the structure-property relationships in compounds known or new is the fundamental purpose of solid state chemistry. Mixing related solid state compounds to form solid solutions can lead to exciting new and/or unexpected properties. Layered compounds...
    Resource Type:
    Dissertation
    Full Text:
    ZnO6 octahedra vs. the J-T distorted CuO6 octahedra within the monoclinic structure of the end member

  • New Inorganic Pigments from Mineral Structures

    Creator:
    Schettini Mejia, Carlo A.
    Abstract:
    The discovery of new blue pigments is a field of great interest, as commercially available pigments present properties that make them undesirable such as poor sustainability, cost, and stability. By researching solid solutions with the melilite structure, we discovered a new solid solution Sr2Zn1-xNixGe2O7, with 0.1 ≤ x ≤ 0.6,...
    Resource Type:
    Honors College Thesis
    Full Text:
    (Equation 1), where C is the material-dependent Curie constant, and θ is the Weiss constant. 𝜒 = 𝐶 𝑇

  • Structure-property relationships in oxides containing tellurium

    Creator:
    Siritanon, Theeranun
    Abstract:
    Oxides of post-transition metals often show unique structures and properties due to the presence of lone pair electrons and the diffused s orbitals. The present work focuses on synthesis and characterizations of oxides containing Te, a heavy post transition metal. New series of pyrochlore oxides of the formula Cs(M,Te)₂O₆ (M...
    Resource Type:
    Dissertation
    Full Text:
    Figure 4.13: Log of resistivity for Cs(M,Te)2O6 phases plotted vs. 1/T. ..................... 79

  • Structure-property relationships of YbFe₂O₄-type layered transition metal oxides

    Creator:
    Grajczyk, Rosa
    Abstract:
    The structure–property relationships of solid solutions within the YbFe₂O₄ family of compounds have been studied in relation to their optical, dielectric and magnetic properties. This family of compounds is of recent interest because of the trigonal bipyramid coordination that is rarely observed in transition metal oxides. The systematic study of...
    Resource Type:
    Dissertation
    Full Text:
    isothermal magnetization of selected compositions for InFeCu1- xMgxO4 (x = 0 – 0.4) from ± 5 T at 5 K

  • Structure-property relationships in oxides containing select platinum group metals

    Creator:
    Gatimu, Alvin J.
    Abstract:
    Oxide materials exhibit a wide variety of structures and properties. In particular, transition metal oxides tend to be highly stable while exhibiting a wide range of properties that can be used for numerous applications. This work focuses on investigating how the structures’ of 4d and 5d transition metal oxides influences...
    Resource Type:
    Dissertation
    Full Text:
    defects. Mathematically, an Arrhenius plot of Lnσ vs. 1/T can be used to show the difference in

  • Cation Substitution Effects in Complex Transition Metal Oxides

    Creator:
    Duell, Brett A.
    Abstract:
    Understanding structural evolution in solids as composition changes is essential to materials properties prediction. Such structure-properties relationships are the theme of solid state chemistry. Materials scientists and chemists have utilized an abundance of simple crystal structures to enhance understanding of chemical and structural origins of properties in materials for decades....
    Resource Type:
    Dissertation
    Full Text:
    of the A, B and O ionic radii, by the formula, t = [rA + r0]/[ √ 2(rB + r0)], where t is the