Luojun Du

Aug 29, 2024 | nature.com | Luojun Du |Jin Zhang |Fangwei Ye |Qing Dai |Hui Deng |Guangyu Zhang

AbstractNonlinear physics is one of the most important research fields in modern physics and materials science. It offers an unprecedented paradigm for exploring many fascinating physical phenomena and realizing diverse cutting-edge applications inconceivable in the framework of linear processes. Here we review the recent theoretical and experimental progress concerning the nonlinear physics of synthetic quantum moiré superlattices.

Feb 28, 2024 | nature.com | Qinghe Wang |Qinghua Zhang |Xiuzhen Li |Nianpeng Lu |Ying Lu |Xuedong Bai | +4 more

AbstractMonolayer molybdenum disulfide (MoS2), an emergent two-dimensional (2D) semiconductor, holds great promise for transcending the fundamental limits of silicon electronics and continue the downscaling of field-effect transistors. To realize its full potential and high-end applications, controlled synthesis of wafer-scale monolayer MoS2 single crystals on general commercial substrates is highly desired yet challenging.

Feb 18, 2024 | nature.com | Luojun Du

Excitonic effects dominate the optical properties of 2D materials, and excitons have been observed both within a single layer, and between two layers of 2D materials. In 2023, a number of experiments on trilayer 2D structures uncovered new exciton states — quadrupolar and every-other-layer excitons — that have an electrically-tunable dipole moment and show a quantum many-body phase diagram.