Nanoseminar in PHYSICS
\nONLI NE EVENT - REGISTER \;HERE.
\nBy Prof. Eui-Hyeok Yang\, Stevens Insti tute of Technology\, Hoboken\, New Jersey\, USA
\nAbstract:&nb sp\;I present our recent work on two-dimensional (2D) transition metal dichalcogenides (TMDs) doped with transition-metal atoms\, targeting applications in spintronic memory and biosensing. First\, I discuss the s ynthesis\, doping\, and ferromagnetism in Fe-doped monolayer TMDs\, with a focus on spin-orbit torque (SOT) switching. Materials such as those conta ining heavy metals with strong spin-orbit coupling and topological insulat ors with spin-momentum locking generate substantial spin currents when sub jected to electrical fields. When paired with van der Waals (vdW) magnets\ , these materials enhance spin-torque transfer efficiency\, with the stron g perpendicular magnetic anisotropy proving particularly useful for spintr onic applications. Thinner vdW magnets are found to improve energy efficie ncy by enabling closer interaction between the magnetic layers and spin-ac cumulated interfaces. In our prior work (Nature Communications\, 11\, 2034 \, 2020)\, we introduced Fe-doped monolayer MoS2\, which is a 2 D dilute magnetic semiconductor (DMS) that operates above room temperature \, offering a promising solution for practical SOT applications. Building on this\, I present our recent demonstration of highly energy-efficient\, field-free\, deterministic\, and non-volatile SOT switching in Fe-doped mo nolayer MoS2 deposited on a platinum Hall bar structure. The us e of 2D DMS monolayers represents the first demonstration of SOT switching at the true atomic monolayer limit. Additionally\, I briefly highlight ou r work on MoSâ‚‚-based sensors designed to enhance the precision of infect ious disease diagnoses\, ultimately leading to the development of effectiv e and accessible diagnostic tools.
\nBio: Dr. E. H. Yang is a Professor of the Mechanical Engineering Department at Stevens I nstitute of Technology. He worked as a Senior Member of the Engineering St aff at NASA's Jet Propulsion Laboratory. Dr. Yang led several projects fun ded by NASA\, DARPA\, and NRO before joining Stevens in 2006. He secured o ver forty federal grants and contracts\, including funding from the NSF\, AFOSR\, and the US Army. Among other honors\, he was awarded the Lew Allen Award for Excellence at NASA/JPL in 2003\, the Award for Research Excelle nce at Stevens in 2019 and the IEEE Technical Achievement Award (Advanced Career) from the IEEE Sensors Council in 2020. He is a Distinguished Lectu rer of the IEEE Nanotechnology Council as well as the Sensors Council. Dr. Yang is Editor-in-Chief of the IEEE Sensors Reviews and \;Chair of t he IEEE Nanotechnology Council North Jersey Chapter. Dr. Yang is a Fellow of the National Academy of Inventors. In 2023\, he was awarded the Master of Engineering\, Honoris Causa\, from Stevens Institute of Technology.
\nHosted by Dr Aron Cummings\, \;Senior Researcher at Theoretical and Comput ational Nanoscience \;group ICN2
\nONLINE ATTEND ANCE: JOIN \;HERE
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\n\; DTSTART:20260709T140000 DTEND:20260709T215959 LOCATION:ONLINE EVENT CATEGORIES:NanoSeminars END:VEVENT END:VCALENDAR