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Several solvothermal synthetic methods have been developed to produce novel low-dimensional magnetic materials and determine their structure-properties relationships. Two main classes of compounds were investigated, including iron selenides and transition metal formate-chlorides.
Chapter 2 details the development of the first solution-based synthetic route to superconducting iron (II) selenide. Samples were found to retain superconducting properties only when air and water were rigorously excluded from the synthesis.
Chapter 3 presents the synthesis, structure, and magnetic properties of two new mixed-valence compounds with infinite ∞1(FeSe 2) tetrahedral chains separated by Fe-amine complexes. The use of different Fe-amine complexes allows for tuning of the magnetic properties without changing the general structural motif.
Chapters 4 and 5 report the first members of the transition metal chloride-formate family of compounds, which contain linear zig-zag chains of octahedrally coordinated metal atoms linked by μ2-Cl and syn-syn formate bridges. These compounds order antiferromagnetically and exhibit metamagnetic transitions.
Chapter 6 describes a related set of transition metal formate-chloride compounds that are comprised of helical chains of edge-sharing M2+ -centered octahedra. These compounds undergo 3D ferrimagnetic ordering at low temperature, and are rare examples of homospin topological ferrimagnets.
Advisor: | Kovnir, Kirill |
Commitee: | Kauzlarich, Susan M., Osterloh, Frank E. |
School: | University of California, Davis |
Department: | Chemistry |
School Location: | United States -- California |
Source: | DAI-B 79/08(E), Dissertation Abstracts International |
Source Type: | DISSERTATION |
Subjects: | Inorganic chemistry |
Keywords: | Magnetism, Solvothermal synthesis, Superconductivity |
Publication Number: | 10682102 |
ISBN: | 978-0-355-76415-4 |