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Ultralong carrier lifetime of topological edge states in a-Bi4Br4
Pengcheng Mao, Junfeng Han, Jingchuan Zheng +13
The rising of quantum spin Hall insulators (QSHI) in two-dimensional (2D) systems has been attracting significant interest in current research, for which the 1D helical edge states…
Ultra-broadband photodetection of Weyl semimetal TaAs up to infrared 10 μm range at room temperature
Shumeng Chi, Zhilin Li, Ying Xie +8
Photodetectors with broadband optical response have promising applications in many advanced optoelectronic and photonic devices. Especially, those with the detection range up to mi…
Spin-orbit engineering in transition metal dichalcogenide alloy monolayers
Gang Wang, Cedric Robert, Aslihan Suslu +8
Transition metal dichalcogenide (TMDC) monolayers are newly discovered semiconductors for a wide range of applications in electronics and optoelectronics. Most studies have focused…
MoS_2 as an ideal material for valleytronics: valley-selective circular dichroism and valley Hall effect
Ting Cao, Ji Feng, Junren Shi +2
A two-dimensional honeycomb lattice harbors a pair of inequivalent valleys in the k-space electronic structure, in the vicinities of the vertices of a hexagonal Brillouin zone, K}$…