Andrew Johnson – 2015

Impact of the Ferroelectric Polarization State on Conductivity Through Thin-film SrTiO3/Si Heterostructures Research Advisor: Dr. Joshua Veazey Certain thin-film ferroelectric oxide-semiconductor heterostructures allow for reversible, local changes in conductivity, with potential applications including non-volatile memory devices. Force microscopy techniques were used to investigate the impact of the ferroelectric polarization state on local conductive properties of […]

Margaret Dickinson – 2015

Development of a Novel Method to Measure Per- and Polyfluoralkyl Substances in Paper and Textiles Research Advisor: Dr. Paul DeYoung and Dr. Graham Peaslee Per- and polyfluoroalkyl substances (PFASs) are chemical compounds used as powerful, long-lived surfactants in many consumer products. Because of the environmental persistence of PFASs, their ability to bioaccumulate, and their suspected […]

Jacob Pledger – 2015

Crystalline Channeling of MeV ion beams Research Advisor: Dr. Stephen Remillard Thin film strontium titanate (SrTiO3) on single crystal MgO substrate, and thin film strontium manganese oxide (SrMnO3) also on single crystal MgO substrate, are being considered for use in engineered superlattices.  Crystal matching of the films to the substrates is indicated by channeling of […]

Alec Nelson – 2015

Inductive and Resistive Nonlinearities of a Superconductor Resonator Research Advisor: Dr. Stephen Remillard This experiment is designed to compare the feedback from an altered superconductor resonator with a conventional, unaltered superconductor resonator. Superconducting transmission lines are patterned on a lanthanum aluminium substrate chip with a geometry that resonates within the microwave range. Nonlinearities, distortion of […]

Christina Sarosiek – 2015

Differential PIXE Analysis of Multi-layer Auto Paint Research Advisor: Dr. Paul DeYoung and Dr. Graham Peaslee Differential Particle Induced X-ray Emission (DPIXE) is a technique developed to analyze multi-layered samples in a non-destructive manner. Analysis of auto paint, in particular, is beneficial in legal cases involving automobile crimes. Particle Induced X-ray Emission (PIXE) involves particle […]