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Title: Structure-Property Relationships in Novel Materials. Part 1: Frustrated Magnetism and Deintercalation of Honeycomb Oxides. Part 2: Electron-Precise Gold Intermetallics
Authors: Seibel, Elizabeth M.
Advisors: Cava, Robert J
Contributors: Chemistry Department
Keywords: Crystallography
Subjects: Chemistry
Materials Science
Issue Date: 2017
Publisher: Princeton, NJ : Princeton University
Abstract: This thesis is a study of the structure-property relationships of novel materials, broken into two major parts. The first part, “Part I: Frustrated Magnetism and Deintercalation of Honeycomb Oxides” explores new, layered nickel oxides and their properties, specifically the synthesis, structure, magnetism, and applications of the Na3Ni2BiO6-NaNi2BiO6-NaNi2BiO6●1.7H2O system. These phases are of interest to the solid-state and physics communities because they display frustrated magnetism on a hexagonal lattice. Chapter 3 explores the chemistry and physics of Na3Ni2BiO6; Chapter 4 then discusses its chemical deintercalation and subsequent hydration to form the NaNi2BiO6-NaNi2BiO6●1.7H2O system. These phases are examples of sought-after spin-1/2 systems on a hexagonal lattice. The second part of this thesis, “Part II: Electron-Precise Gold Intermetallics” explores novel, electron-precise intermetallics in the Lanthanide-gold-pnictide ternary system. The chemistry of gold-containing solids has not been well-studied despite gold’s unusual physics, motivating the study. There are three new families discussed herein. The first, found in Chapter 7, is of the type LnAuSb (Ln = Lanthanide) which are new Dirac semimetals. The work illustrates a chemical design principle that can be used to predict new Dirac Semimetals, which is important given that the field of topological materials is rapidly growing. Chapter 8 discusses materials of the type LnAuBi2, which are layered intermetallics with a high degree of magnetic anisotropy. Finally, Chapter 9 explores new phases of the form Ln3Au3Bi4. These materials are semiconductors with high Seebeck coefficients at room temperature, indicating their potential for use as thermoelectric materials.
Alternate format: The Mudd Manuscript Library retains one bound copy of each dissertation. Search for these copies in the library's main catalog:
Type of Material: Academic dissertations (Ph.D.)
Language: en
Appears in Collections:Chemistry

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