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Erik Enriquez1 Paul Dowden1 Quanxi Jia2 Aiping Chen1

1, Los Alamos National Laboratory, Los Alamos, New Mexico, United States
2, The State University of New York at Buffalo, Buffalo, New York, United States

High quality epitaxial single-phase UOx thin films could enable new research possibilities. The recently developed actinide synthesis capability at Center for Integrated Nanotechnologies at Los Alamos National Laboratory allows the growth of different actinide thin films with excellent controllability. In this talk, we will focus on the growth of epitaxial and textured UOx thin films by pulsed laser deposition. X-ray diffraction and transmission electron microscopy results confirm that different single-phase materials including UO2, U3O8, UO3 has been stabilized on different substrates. Optical properties such as optical bandgap and Raman spectra have been also investigated. The magnetic and electronic properties have also been systematically studied in different temperatures. This research is a comprehensive study on intrinsic physical properties of single-phase UO2, U3O8, and UO3 thin films, which provides the foundation for advanced characterization.

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