GARRATT RESEARCH GROUP
Group Lead, Assistant Professor
An Assistant Professor at MSU and member of the diamond research group at the Fraunhofer Center for Coatings and Diamond, specializing in measurement and structural analysis of coatings and bulk crystal material. Dr. Garratt graduated with a doctorate in condensed matter physics from Western Michigan University in 2013. His research experience covers a wide field of electronic materials systems and applications, from nanosystems to bulk crystalline substrates, specializing in electron and ion beam microscopy and spectroscopy. Implementing these measurement and modification techniques he developed protocols for maskless single ion implantation for donor-based qubits, demonstrated control over nanoparticle epitaxial growth on bulk crystal substrates, and probed the compositional distribution of isotopic material within bulk polycrystalline coatings. At the Fraunhofer center, Dr. Garratt’s research focuses on understanding the collective behavior of matter, specifically crystal growth, at the mesoscale. The development of measurement platforms at this length scale is expected to yield significant insights to the morphological, mechanical and electronic properties of engineered materials.
SHENGYUAN BAI
Ph.D. Student
Shengyuan's research explores the growth dynamics of single crystal diamond under constrained conditions in a microwave plasma assisted chemical vapor deposition system. His work leverages scanning x-ray diffraction and light microscopy to elucidate the process-structure relationships between the diamond, pocket, and plasma during growth. Shengyuan works in close collaboration with Fraunhofer CCD to analyze thin film and bulk samples for diamond technologies.
Keywords: Epitaxy, XRD, Birefringence, CVD, XRC, GIXRD, data analysis
Ph.D. Student
Erik researches the structure-property relationships of diamond in high radiation environment's. His investigations leverage scanning confocal microscopy and electrical characterization to determine the mechanisms of performance losses of single crystal diamond detectors. Erik also works in collaboration with Fraunhofer CCD to build and test databases and MATLAB-based programs to automate the data analysis processes of large datasets.
Keywords: XRD, PL, Raman, MATLAB, SQL, detector, data analysis
Ph.D. Student
Hank's work focuses on the development of diamond-based high energy neutron detectors in virtual and real world environments. His work encompasses the programming, simulation, growth, fabrication and testing of in collaboration with researchers at the Facility for Rare Isotope Beams (FRIB). He has also works with researchers at the Air Force Research Lab developing simulations of ion implantations and diffusion at high temperature to study diamond color centers.
Keywords: GEANT4, SRIM, ion implantation, detector, C++, Fortran, Python
SARAH ROBERTS
Ph.D. Student
Sarah's research focuses on single diamond growth. Her work will develop solutions to controlling dopant concentrations (nitrogen) spatially in the X, Y, and Z directions using a combination of lithographic and process control experiments. Her research is expected to yield methodologies which will advance diamond as a viable platform for the creation of scalable quantum computing architectures.
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Keywords: epitaxy, XRD, Birefringence, lithography, data analysis, CVD
XAVIER LEWIS
Professorial Assistant
Xavier's work explores uncertainty propagation in data collection and analysis. He works in close collaboration with Ph.D. students in the evaluation of data collected and processed using XRD, which will be used as a basis to evaluate and support findings of process-structure relationships in diamond growth.
Keywords: MATLAB, XRD
Undergraduate Research Assistant
Mrs. Anderson works in our lab to support NSF-funded research in AI modeling of diamond crystal growth. She currently operates the scanning x-ray diffraction and quantitative birefringence instruments, performing data collection and analysis.
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Keywords: XRD, birefringence, microscopy, data analysis
