Results 91 to 100 of about 908 (165)

Topological Floquet engineering of twisted bilayer graphene

Physical Review Research, 2019
We investigate the topological properties of Floquet-engineered twisted bilayer graphene above the so-called magic angle driven by circularly polarized laser pulses.
Gabriel E. Topp, Gregor Jotzu, James W. McIver, Lede Xian, Angel Rubio, Michael A. Sentef   +5 more
doaj   +1 more source

Lattice dynamics localization in low-angle twisted bilayer graphene

, 2020
A low twist angle between the two stacked crystal networks in bilayer graphene enables self-organized lattice reconstruction with the formation of a periodic domain.
Campos, João L., Campos, Leonardo C., Cançado, Luiz G., Charlier, Jean-Christophe, Gadelha, Andreij C., Jorio, Ado, Lamparski, Michael, Lemos, Jessica S., Medeiros-Ribeiro, Gilberto, Meunier, Vincent, Miranda, Daniel, Nadas, Rafael, Neto, Eliel G. S., Nguyen, Viet-Hung, Ohlberg, Douglas A. A., Ornelas, Vinícius, Paszko, Dawid, Rabelo, Cassiano, Santana, Fabiano C., Taniguchi, Takashi, van Troeye, Benoit, Vasconcelos, Thiago L., Watanabe, Kenji   +22 more
core   +1 more source

In situ twistronics of van der Waals heterostructures

, 2020
In van der Waals heterostructures, electronic bands of two-dimensional (2D) materials, their nontrivial topology, and electron-electron interactions can be dramatically changed by a moire pattern induced by twist angles between different layers.
Yang, Yaping, Li, Jidong, Yin, Jun, Xu, Shuigang, Mullan, Ciaran, Taniguchi, Takashi, Watanabe, Kenji, Geim, A. K., Novoselov, Konstantin S., Mishchenko, Artem   +9 more
openaire   +2 more sources

Hyperbolic polaritons in twisted β-Ga2O3

npj Nanophotonics
Hyperbolic polaritons (HPs) are essential for integrated photonics due to their directional propagation and strong field confinement. While most research focuses on in-plane light behavior, the out-of-plane features of HPs remain underexplored.
Yuan Zheng, Yali Zeng, Yidan Hu, Lu Liu, Zhigao Dai, Huanyang Chen   +5 more
doaj   +1 more source

Freespace twistronics for optical supertopologies

Twistronics, the study of moiré superlattices of twisted bilayer 2D materials creating nontrivial physical effects, has recently revolutionized diverse subjects from materials to optoelectronics, nanophotonics, and beyond. Here, breaking the reliance on materials, we present twistronics in higher-dimensional free space, where the twisted lattice is not
Dev, Vasu, Shen, Yijie
openaire   +2 more sources

Twist angle-dependent transport properties of twisted bilayer graphene

NPG Asia Materials
Twisted bilayer graphene (tBLG) with small twist angles has attracted significant attention because of its unique electronic properties arising from the formation of a moiré superlattice.
Jin Hong Kim, Seoung-Hun Kang, Duhee Yoon, Hakseong Kim, Jin-Soo Kim, Mohd Musaib Haidari, Dong Jin Jang, Jin-Yong Ko, Young-Woo Son, Bae Ho Park, Jin Sik Choi   +10 more
doaj   +1 more source

Bilayer graphene interface with a Quantum Twisting Microscope [PDF]

Màster Oficial de Ciència i Tecnologia Quàntiques / Quantum Science and Technology, Facultat de Física, Universitat de Barcelona. Curs: 2023-2024. Tutora: Carmen Rubio VerdúMoiré physics, which studies the novel properties that arise when two or more 2D ...
Martín Rodríguez, Alejandro
core  

Optoelectronic characterisation of twisted germanium sulfide nanowires with experimental observation of intrinsic ferroelectricity

, 2020
We report the optoelectrical characterisation of Eshelby twisted Germanium sulfide (GeS) nanowires with first experimental observation of ferroelectric order at room temperature in GeS which is an otherwise centrosymmetric molecule.
Chowdhury, Tamaghna, Rahman, Atikur, Sheet, Goutam, Vasdev, Aastha   +3 more
core  

CVD-based graphene twistronics

, 2023
Twisted bilayer graphene (TBG) is certainly the major driving force of the novel paradigm of twistronics, which aspires at understanding and engineering the emergent electronic properties of twisted two-dimensional (2D) materials. The main tool used so far to fabricate TBG is the dry assembly of mechanically exfoliated flakes, combined with the tear ...
openaire   +1 more source

Photonic twistronics-induced broadband omnidirectional perfect transparency

Optica
Omnidirectional perfect transparency (OPT) in materials is very useful in many applications. Traditional systems face challenges in achieving OPT owing to the fact that the propagating phase changes with the incident angles.
Qian Wei, Yuqian Wang, Dayu Bi, Zhiwei Guo, Yong Sun, Yunhui Li, Yuguang Chen, Haitao Jiang, Yaping Yang, Hong Chen   +9 more
openaire   +1 more source