Results 31 to 40 of about 72,047 (222)

Moiré straintronics: a universal platform for reconfigurable quantum materials

npj 2D Materials and Applications, 2023
Large-scale two-dimensional (2D) moiré superlattices are driving a revolution in designer quantum materials. The electronic interactions in these superlattices, strongly dependent on the periodicity and symmetry of the moiré pattern, critically determine
M. Kögl, P. Soubelet, M. Brotons-Gisbert, A. V. Stier, B. D. Gerardot, J. J. Finley   +5 more
doaj   +1 more source

Evidence for moiré intralayer excitons in twisted WSe2/WSe2 homobilayer superlattices

Light: Science & Applications, 2022
The moiré intralayer excitons in the twisted WSe2/WSe2 homobilayers superlattices were successfully observed and confirmed the existence of moiré intralayer excitons.
Biao Wu, Haihong Zheng, Shaofei Li, Junnan Ding, Jun He, Yujia Zeng, Keqiu Chen, Zongwen Liu, Shula Chen, Anlian Pan, Yanping Liu   +10 more
doaj   +1 more source

Moiré excitons at line defects in transition metal dichalcogenides heterobilayers

Comptes Rendus. Physique, 2021
In heterobilayers of 2D semiconductors, moiré pattern forms due to the inevitable lattice mismatch and twisting. Earlier works have shown that interlayer excitons in long-period moiré pattern experience a pronounced superlattice potential and have ...
Tang, Jianju, Yu, Hongyi, Shih, Chih-Kang, Yao, Wang   +3 more
doaj   +1 more source

Interlayer donor-acceptor pair excitons in MoSe2/WSe2 moiré heterobilayer

Nature Communications, 2023
Localized interlayer excitons (LIXs) in two-dimensional moiré superlattices exhibit sharp and dense emission peaks, making them promising as highly tunable single-photon sources. However, the fundamental nature of these LIXs is still elusive.
Hongbing Cai, Abdullah Rasmita, Qinghai Tan, Jia-Min Lai, Ruihua He, Xiangbin Cai, Yan Zhao, Disheng Chen, Naizhou Wang, Zhao Mu, Zumeng Huang, Zhaowei Zhang, John J. H. Eng, Yuanda Liu, Yongzhi She, Nan Pan, Yansong Miao, Xiaoping Wang, Xiaogang Liu, Jun Zhang, Weibo Gao   +20 more
doaj   +1 more source

Giant enhancement of second harmonic generation from monolayer 2D materials placed on photonic moiré superlattice

Nanophotonics, 2023
We numerically investigate second harmonic generation (SHG) from a monolayer of 2D-material placed on photonic moiré superlattice fabricated by dielectric materials.
Ning Tingyin, Zhao Lina, Huo Yanyan, Cai Yangjian, Ren Yingying   +4 more
doaj   +1 more source

Tuning moiré excitons and correlated electronic states through layer degree of freedom

Nature Communications, 2022
Twisted heterostructures of transition metal dichalcogenides host the so-called moiré excitons, or intralayer excitons modified by the moiré potential. Here the authors show tunability of the moiré excitons and the coexisting correlated electronic states
Dongxue Chen, Zhen Lian, Xiong Huang, Ying Su, Mina Rashetnia, Li Yan, Mark Blei, Takashi Taniguchi, Kenji Watanabe, Sefaattin Tongay, Zenghui Wang, Chuanwei Zhang, Yong-Tao Cui, Su-Fei Shi   +13 more
doaj   +1 more source

Moir\'e excitons: from programmable quantum emitter arrays to spin-orbit coupled artificial lattices [PDF]

, 2017
Highly uniform and ordered nanodot arrays are crucial for high performance quantum optoelectronics including new semiconductor lasers and single photon emitters, and for synthesizing artificial lattices of interacting quasiparticles towards quantum ...
Liu, Gui-Bin, Tang, Jianju, Xu, Xiaodong, Yao, Wang, Yu, Hongyi   +4 more
core   +2 more sources

Extended quantum anomalous Hall states in graphene/hBN moiré superlattices [PDF]

Nature
Electrons in topological flat bands can form new topological states driven by correlation effects. The pentalayer rhombohedral graphene/hexagonal boron nitride (hBN) moiré superlattice was shown to host fractional quantum anomalous Hall effect (FQAHE) at
Zhengguang Lu, Tonghang Han, Yuxuan Yao, Zach Hadjri, Jixiang Yang, Junseok Seo, Lihan Shi, Shenyong Ye, Kenji Watanabe, T. Taniguchi, L. Ju   +10 more
semanticscholar   +1 more source

Moiré Surface States and Enhanced Superconductivity in Topological Insulators

Physical Review X, 2021
Recently, moiré superlattices have been found on the surface of topological insulators due to the rotational misalignment of topmost layers. In this work, we study the effects of moiré superlattices on the topological surface states using a continuum ...
Taige Wang, Noah F. Q. Yuan, Liang Fu
doaj   +1 more source

Tailoring excitonic states of van der Waals bilayers through stacking configuration, band alignment and valley-spin [PDF]

, 2019
Excitons in monolayer semiconductors have large optical transition dipole for strong coupling with light field. Interlayer excitons in heterobilayers, with layer separation of electron and hole components, feature large electric dipole that enables ...
Chang, Wen-Hao, Chu, Ming-Wen, Hsu, Wei-Ting, Lee, Ming-Hao, Li, Lain-Jong, Lin, Bo-Han, Lu, Li-Syuan, Shih, Chih-Kang, Yao, Wang   +8 more
core   +2 more sources