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cond-mat.mes-hall2025
Giant Response and Harmonic Generation in Néel-Torque Antiferromagnetic Resonance
Kuangyin Deng, Ran Cheng
We theoretically investigate the resonant and higher order magnetic responses of a collinear antiferromagnet induced by Néel spin-orbit torques (NSOTs). By deriving the dynamical s…
cond-mat.mes-hall2025★ 3 cited
Emerging (2+1)D electrodynamics and topological instanton in pseudo-Hermitian two-level systems
Kuangyin Deng, Ran Cheng
We reveal a hidden electrodynamical structure emerging from a general pseudo-Hermitian system that exhibits real spectra. Even when the Hamiltonian does not explicitly d…
cond-mat.mes-hall2025
Visualizing Field-free Deterministic Magnetic Switching of all-van der Waals Spin-Orbit Torque System Using Spin Ensembles in Hexagonal Boron Nitride
Xi Zhang, Jingcheng Zhou, Chaowei Hu +19
Recently, optically active spin defects embedded in van der Waals (vdW) crystals have emerged as a transformative quantum sensing platform to explore cutting-edge materials science…