Optimal Control Drives Ultrafast and Energy-Efficient Magnetization Switching in van der Waals Magnets

My Contribution

I performed atomistic spin dynamics simulations using the VAMPIRE package to benchmark the energy cost of conventional static-field magnetization reversal in monolayer CrSBr. By calculating the intrinsic energy barriers across different system sizes, temperatures, and switching timescales, I established a quantitative baseline for comparison with the Optimal Control Theory (OCT) protocols developed by Mohammad H. Badarneh under the supervision of Prof. Elton J. G. Santos.

The OCT framework demonstrated that optimally shaped magnetic field pulses can reduce switching energies by up to two orders of magnitude below conventional protocols, achieving femtojoule-scale reversal at picosecond speeds. This work provides a new benchmark for energy efficiency in memory technologies and establishes OCT as a compelling design paradigm for next-generation low-power spintronic devices.