Sandia National Lab
(Co-Lead Thrust 1)
Kumar is a Sandia Principal Scientist and directs the Nonlinear Electronic Devices and Materials group.
Research
Kumar’s research expertise is in exploiting novel physics and co-design for original computing architectures, and in developing unique operando instrumentation. He will oversee forward and inverse design, and development of manufacturing-friendly operando techniques.
Publications
- Kumar S, Strachan J, Williams R. Chaotic dynamics in nanoscale NbO2 Mott memristors for analogue computing. Nature. 2017; 548(7667):318-321. doi: 10.1038/nature23307
- Kumar S, Wang Z, Davila N, Kumari N, Norris K, Huang X, Strachan J, Vine D, Kilcoyne A, Nishi Y, Williams R. Physical origins of current and temperature controlled negative differential resistances in NbO2. Nature Communications. 2017; 8(1):-. doi: 10.1038/s41467-017-00773-4
- Kumar S, Wang X, Strachan J, Yang Y, Lu W. Dynamical memristors for higher-complexity neuromorphic computing. Nature Reviews Materials. 2022 April 08; :-. doi: 10.1038/s41578-022-00434-z
- Kumar S, Williams R, Wang Z. Third-order nanocircuit elements for neuromorphic engineering. Nature. 2020 September 23; 585(7826):518-523. doi: 10.1038/s41586-020-2735-5
- Sood A, Shen X, Shi Y, Kumar S, Park S, Zajac M, Sun Y, Chen L, Ramanathan S, Wang X, Chueh W, Lindenberg A. Universal phase dynamics in VO 2 switches revealed by ultrafast operando diffraction. Science. 2021 July 16; 373(6552):352-355. doi: 10.1126/science.abc0652