Results 91 to 100 of about 72,047 (222)

Exciton-polarons in the presence of strongly correlated electronic states in a MoSe2/WSe2 moiré superlattice [PDF]

, 2022
Aidan Campbell, Mauro Brotons‐Gisbert, Hyeonjun Baek, Valerio Vitale, Takashi Taniguchi, Kenji Watanabe, Johannes Lischner, Brian D. Gerardot   +7 more
openalex   +1 more source

High‐Order Nonlinear Photonic Crystal with Ordered Structures for Giant Enhancement of Frequency Tripling

Advanced Science, EarlyView.
A meta‐YAG crystal with artificially order/disorder structures was fabricated to realize the efficient third‐harmonic generation at 343 nm with a conversion efficiency of 4.5×10−3, surpassing six orders of magnitude compared to bulk YAG crystal. Moreover, a wide spectral tunability from 331 to 356 nm was also achieved in the meta‐YAG, indicating its ...
Xiaotian Guo, Qiaoling Han, Fei Liang, Bin Zhang, Dazhi Lu, Haohai Yu, Huaijin Zhang   +6 more
wiley   +1 more source

Twister: Construction and structural relaxation of commensurate moiré superlattices [PDF]

, 2021
Saismit Naik, Mit H. Naik, Indrajit Maity, Manish Jain   +3 more
openalex   +1 more source

Balancing the Competing Effects of Carrier and Phonon Transport Mechanisms to Enhance the Thermoelectric Properties of p‐Type Ti2Zr2−xHf2Nb2Fe5.6Ni2.4Sb8 Double Half‐Heusler Alloys via Cation Vacancy Engineering

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
By designing Zr vacancy‐filled p‐type Ti2Zr2Hf2Nb2Fe5.6Ni2.4Sb8‐based thermoelectric materials, multi‐physics mechanisms and multi‐scale microstructural defects are induced to optimize electrical properties and phonon transport while suppressing the bipolar diffusion effect.
Chaoyue Wang, Mina Zhang, Longjun He, Shengpan Kan, Ruyan Song, Degang Zhao, Jinghao Li, Daoyong Cong, Xianglin Zhou   +8 more
wiley   +1 more source

Charge-polarized interfacial superlattices in marginally twisted hexagonal boron nitride

Nature Communications, 2021
Here, moiré superlattices generated by twisted insulating crystals of hexagonal boron nitride are shown to have a ferroelectric-like character, attributed to strain-induced polarized dipoles formed by pairs of interfacial boron and nitrogen atoms that ...
C. R. Woods, P. Ares, H. Nevison-Andrews, M. J. Holwill, R. Fabregas, F. Guinea, A. K. Geim, K. S. Novoselov, N. R. Walet, L. Fumagalli   +9 more
doaj   +1 more source

Giant oscillations in a triangular network of one-dimensional states in marginally twisted graphene

, 2019
The electronic properties of graphene superlattices have attracted intense interest that was further stimulated by the recent observation of novel many-body states at "magic" angles in twisted bilayer graphene (BLG).
Bandurin, D. A., Berdyugin, A. I., Edgar, J. H., Fal'ko, V. I., Geim, A. K., Grigorieva, I. V., Guinea, F., Kim, M., Kuang, W., Kumar, R. Krishna, Kumaravadivel, P., Liu, S., Morozov, S. V., Tsim, B., Xu, S. G.   +14 more
core   +1 more source

Optoelectronic synapses based on two‐dimensional transition metal dichalcogenides for neuromorphic applications

InfoScience, EarlyView.
This review first introduces the fundamental concepts of artificial synapses and synaptic plasticity, then discusses the device structures and operation mechanisms of optoelectronic synapses based on two‐dimensional transition metal dichalcogenides, highlights their applications in neuromorphic vision systems and computing, and concludes with key ...
Xiaona Sun, Yifan Hu, Chengbao Jiang, Shengxue Yang   +3 more
wiley   +1 more source

Theory of holey twistsonic media

Communications Materials, 2022
The intriguing physics of correlated flat bands in moiré superlattices can be mimicked, in classical physics, by twisted acoustic plates with periodic holes.
María Rosendo López, Zhiwang Zhang, Daniel Torrent, Johan Christensen   +3 more
doaj   +1 more source

Charge-order-enhanced capacitance in semiconductor moiré superlattices [PDF]

, 2021
Tingxin Li, Jiacheng Zhu, Yanhao Tang, Kenji Watanabe, Takashi Taniguchi, Veit Elser, Jie Shan, Kin Fai Mak   +7 more
openalex   +1 more source

Strong interfacial charge transfer from CrSBr induces extreme hole doping and quantum‐Hall states in graphene heterostructures

InfoScience, EarlyView.
Magnetic van der Waals semiconductors offer unique opportunities to integrate spin and charge degrees of freedom in atomically thin devices. We fabricate dual‐gated heterostructures consisting of exfoliated CrSBr and monolayer graphene with Hall measurement revealing robust heavy p‐doping of graphene and signals of h‐BN/graphene moiré superlattices ...
Ziqi Liu, Yuchen Gao, Chengfeng Zhu, Yichang Sun, Kenji Watanabe, Takashi Taniguchi, Zuxin Chen, Pingfan Gu, Yu Ye   +8 more
wiley   +1 more source