Results 51 to 60 of about 30,434 (163)

Imaging moiré flat bands in three-dimensional reconstructed WSe2/WS2 superlattices

, 2021
Moiré superlattices in transition metal dichalcogenide (TMD) heterostructures can host novel correlated quantum phenomena due to the interplay of narrow moiré flat bands and strong, long-range Coulomb interactions1–9.
Blei, Mark, Li, Hongyuan, Taniguchi, Takashi, Xie, Jingxu, Wang, Jiayin, Wang, Danqing, Li, Xinyu, Crommie, Michael F, Regan, Emma, Wang, Feng, Zettl, Alex, Li, Shaowei, Zhao, Sihan, Louie, Steven G, Tongay, Sefaattin, Zhao, Wenyu, Naik, Mit H, Watanabe, Kenji, Kahn, Salman, Yumigeta, Kentaro   +19 more
core   +1 more source

Gate-defined Kondo lattices with valley-helical quantum dot arrays

SciPost Physics
Kondo physics and heavy-fermion behavior has been predicted and observed in moiré materials. The electric tunability of moiré materials allows an in-situ study of Kondo lattices' phase diagrams, which is not possible with their intermetallic counterparts.
Antonio L. R. Manesco
doaj   +1 more source

Anti-Symmetric Electromagnetic Interactions’ Response in Electron Circular Dichroism and Chiral Origin of Periodic, Complementary Twisted Angle in Twisted Bilayer Graphene

Molecules, 2022
Many novel physical properties of twisted bilayer graphene have been discovered and studied successively, but the physical mechanism of the chiral modulation of BLG by a twisted angle lacks theoretical research.
Guoqiang Dai, Xiangtao Chen, Ying Jin, Jingang Wang   +3 more
doaj   +1 more source

Polarization Dynamics in Ferroelectrics: Insights Enabled by Machine Learning Molecular Dynamics

Advanced Science, EarlyView.
Machine learning molecular dynamics is presented as a route to capture polarization switching, domain wall kinetics, topological polar textures, and polar mechanical coupling beyond the limits of conventional atomistic methods. This Perspective surveys recent progress and identifies key methodological directions, including long‐range electrostatics ...
Dongyu Bai, Ri He, Junxian Liu, Liangzhi Kou   +3 more
wiley   +1 more source

Semiclassical transport in semiconductor superlattices with boundaries [PDF]

, 2004
In this thesis the electronic transport properties of semiconductor superlattices with boundaries are studied using the Boltzmann equation in relaxation time approximation.
Rieder, Bernhard
core   +1 more source

Moiré-engineered light-matter interactions in MoS2/WSe2 heterobilayers at room temperature

Nature Communications
Moiré superlattices in van der Waals heterostructures represent a highly tunable quantum system, attracting substantial interest in both many-body physics and device applications. However, the influence of the moiré potential on light-matter interactions
Qiaoling Lin, Hanlin Fang, Alexei Kalaboukhov, Yuanda Liu, Yi Zhang, Moritz Fischer, Juntao Li, Joakim Hagel, Samuel Brem, Ermin Malic, Nicolas Stenger, Zhipei Sun, Martijn Wubs, Sanshui Xiao   +13 more
doaj   +1 more source

Flat Bands Induced by Non‐Collinear Antiferromagnetism in CoBi2Te4

Advanced Science, EarlyView.
Flat bands emerge at the edges of intrinsically non‐collinear antiferromagnetic CoBi2Te4 two‐septuple layers through the interplay of spin–orbit coupling–driven band inversion and non‐collinear antiferromagnetism, uncovering a previously unexplored mechanism for flat‐band formation and opening new opportunities for strongly correlated quantum states ...
Ziyuan Zhao, Yuefeng Yin, Jinxing Gu, Mark T. Edmonds, Nikhil V. Medhekar   +4 more
wiley   +1 more source

Chemically Tailored Semiconductor Moiré Superlattices of Janus Heterobilayers

Small Structures
Janus monolayers of transition metal dichalcogenides (TMDCs) are promising building blocks for moiré superlattices because of their built‐in electric field and clean fabrication process.
Wenjin Zhang, Zheng Liu, Hiroshi Nakajo, Soma Aoki, Haonan Wang, Yanlin Wang, Yanlin Gao, Mina Maruyama, Takuto Kawakami, Yasuyuki Makino, Masahiko Kaneda, Tongmin Chen, Kohei Aso, Tomoya Ogawa, Takahiko Endo, Yusuke Nakanishi, Kenji Watanabe, Takashi Taniguchi, Yoshifumi Oshima, Yukiko Yamada‐Takamura, Mikito Koshino, Susumu Okada, Kazunari Matsuda, Toshiaki Kato, Yasumitsu Miyata   +24 more
doaj   +1 more source

Observation of Γ-Valley Moiré Bands and Emergent Hexagonal Lattice in Twisted Transition Metal Dichalcogenides

Physical Review X, 2022
Twisted van der Waals heterostructures have recently been proposed as a condensed-matter platform for realizing controllable quantum models due to the low-energy moiré bands with specific charge distributions moiré superlattices.
Ding Pei, Binbin Wang, Zishu Zhou, Zhihai He, Liheng An, Shanmei He, Cheng Chen, Yiwei Li, Liyang Wei, Aiji Liang, Jose Avila, Pavel Dudin, Viktor Kandyba, Alessio Giampietri, Mattia Cattelan, Alexei Barinov, Zhongkai Liu, Jianpeng Liu, Hongming Weng, Ning Wang, Jiamin Xue, Yulin Chen   +21 more
doaj   +1 more source

Engineering Dirac Cones in Graphene for Efficient Iodide Catalysis: Insights by Nanoscale Electrochemistry

Advanced Science, EarlyView.
Graphene iodide oxidation is regulated by Dirac cone engineering. Electrostatic gating tunes the Fermi level to control local iodide oxidation reaction activity, while magic‐angle twisted bilayer graphene creates flat‐band‐derived interfacial states that promote charge transfer and iodine‐species interaction, revealing a nanoscale route to electronic ...
Yang‐Sheng Lu, Kuo‐En Chang, Ta‐Lei Chou, Aitor Garcia‐Ruiz, Ting‐Han Lin, Yen‐Ting Liu, Akichika Kumatani, Ming‐Hao Liu, Kenji Watanabe, Takashi Taniguchi, Ming‐Wen Chu, Tse‐Ming Chen, Chun‐Wei Chen, Shao‐Sian Li   +13 more
wiley   +1 more source