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p-type Cr2MnO4 with bandgap 3.01 eV was sputter deposited onto (2¯01) and (001) n-type or semi-insulating β-Ga2O3.The heterojunction of p-type CrMnO4 on n-type Ga2O3 is found to be type II, staggered gap, i.e., the band offsets are such that both the conduction and valence band edges of Ga2O3 are lower in energy than those of the Cr2MnO4. This creates a staggered band alignment, which can facilitate the separation of photogenerated electron-hole pairs. The valence band edge of Cr2MnO4 is higher than that of Ga2O3 by 1.82–1.93 eV depending on substrate orientation and doping, which means that holes in Cr2MnO4 would have a lower energy barrier to overcome to move into Ga2O3. Conversely, the conduction band edge of Cr2MnO4 is higher than that of Ga2O3 by 0.13–0.30 eV depending on substrate doping and orientation, which would create a barrier for electrons in Ga2O3 to move into Cr2MnO4. This heterojunction looks highly promising for p-n junction formation for advanced Ga2O3-based power rectifiers. 

While over one-third of the U.S. economy and much of our national security infrastructure directly depends on precision timing, there has been to date no educational workforce development program in the US dedicated to training young talent in the timekeeping technologies that underpin our society. The Alabama Collaborative for Contemporary Education in Precision Timing (ACCEPT) Program is a new, 5-year National Research Traineeship program funded by the National Science Foundation, designed to train the next generation of graduate (MS and PhD) degree holders in a field of critical important to our nation. ACCEPT will provide a comprehensive training and educational opportunity for trainees from physics, mathematics, and engineering. Trainees will combine coursework across these three departments with professional development in critical areas identified by precision timing experts (teamwork, leadership, ethics, communication), and put their training into practice via research experiences with ACCEPT partners, student-led initiatives, and networking at conferences and workshops. In this paper, we present the current objectives, vision, and methodology of our new program, initial steps toward building a comprehensive training facility, and initial research and demonstration projects.