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Full-Text Articles in Physical Sciences and Mathematics
Exploring Mottness And Electronic Order In Strongly Correlated Vanadate Thin Films, Nathan Bairen
Exploring Mottness And Electronic Order In Strongly Correlated Vanadate Thin Films, Nathan Bairen
UNF Graduate Theses and Dissertations
Mott insulators provide a window into some of the most intensely investigated phenomena in physics. Recent discoveries—including the emergence of high-temperature superconductivity in doped Mott insulators not from the cuprate family of superconductors—have inspired investigation into systems with strong electron-electron interactions. One of these systems is La1-xSrxVO3, in which one end-member, LaVO3, is a Mott insulator and the other, SrVO3, is a strongly correlated metal.
Herein, we detail two studies regarding this system. In our oxidation study, we optimized the growth parameters for LaVO3, finding that the ultra-high vacuum technique …
Development Of High Kinetic Inductance Superconducting Nanowire Devices On High Permittivity Strontium Titanate Substrates, Jamie Timmons
Development Of High Kinetic Inductance Superconducting Nanowire Devices On High Permittivity Strontium Titanate Substrates, Jamie Timmons
UNF Graduate Theses and Dissertations
This thesis involves the fabrication and characterization of devices made from two different superconducting materials: yttrium barium copper oxide (YBCO), a high-TC complex oxide, and niobium nitride (NbN), a low-TC transition metal nitride. Both types of devices are fabricated on strontium titanate substrates, which provides a good lattice match to YBCO and also an extremely large permittivity at low temperature. We demonstrate that wet etching of YBCO thin films via bromine can be a viable microfrabriation technique for the material. Using approximately 35 nm thick epitaxially grown YBCO on an STO substrate, we were able to fabricate YBCO “microwires” with …