Magnetic and low-dissipation applications of topological materials at limited dimensions

My research on topological materials at limited dimensions seeks to lay the groundwork for the next generation of magnetic sensors and low-dissipation circuitry. My research focuses on two compounds: WTe2, a type-II Weyl semimetal, and SnTe, a topological crystalline insulator. I plan to use intercalation and doping to tune the unique electrical properties of WTe2 and SnTe at the nanoscale, where the high surface to volume ratio accentuates the contributions from the topologically protected surface states. Additionally, I will develop novel strategies to mitigate the effects of surface oxidation, which degrades the electrical properties of these compounds. In my research, I will link synthesis to material properties through systematic physical, chemical, and electrical characterizations. The proposed applications based on these topological materials align with the main goal outlined in NASA Technology Roadmap TA 10: Nanotechnology to “provide an overall reduction in vehicle mass while enhancing efficiency, performance, and safety.” This research path can be further focused by major area 10.4, “Sensors Electronics, and Devices.” Collaboration with the NASA Visiting Technologist program will allow further investigation into the radiation stability of topological material based devices.