[Tu-P] Semiconductors for terahertz and mid infrared

[Tu-P-41] Cyclotron Resonant Nonlinear Hall Effect in 2D Valley Semiconductors via Skew Scattering

〇Valeriia Ivanova¹, Vadim Kovalev^2,3, Ivan Savenko^1,4 (1. Guangdong Technion — Israel Inst. of Tech., 241 Daxue Road, Shantou, Guangdong, China, 515063 (China), 2. Rzhanov Inst. of Semiconductor Physics, Siberian Branch of the Russian Academy of Sci., Novosibirsk 630090, Russia (Russia), 3. Novosibirsk State Tech. Univ., Novosibirsk 630073, Russia (Russia), 4. Technion – Israel Inst. of Tech., Haifa, 3200003, Israel (Israel))

We predict a giant cyclotron resonant enhancement of the nonlinear valley Hall photocurrent in monolayer MoS₂. Using kinetic theory, we show that trigonal warping and broken inversion symmetry enable efficient optical control of valley transport at THz frequencies in a magnetic field.