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Field-Tunable Valley Coupling and Localization in a Dodecagonal Semiconductor Quasicrystal

Autor: Liu, Zhida, Gao, Qiang, Li, Yanxing, Liu, Xiaohui, Zhang, Fan, Kim, Dong Seob, Ni, Yue, Mackenzie, Miles, Abudayyeh, Hamza, Watanabe, Kenji, Taniguchi, Takashi, Shih, Chih-Kang, Khalaf, Eslam, Li, Xiaoqin

Quasicrystals are characterized by atomic arrangements possessing long-range order without periodicity. Van der Waals (vdW) bilayers provide a unique opportunity to controllably vary atomic alignment between two layers from a periodic moir\'e crystal

Externí odkaz: http://arxiv.org/abs/2408.02176

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Distinct moir\'e trions in a twisted semiconductor homobilayer

Autor: Liu, Zhida, Wang, Haonan, Liu, Xiaohui, Ni, Yue, Gao, Frank, Arash, Saba, Kim, Dong Seob, Liu, Xiangcheng, Zeng, Yongxin, Quan, Jiamin, Huang, Di, Watanabe, Kenji, Taniguchi, Takashi, Baldini, Edoardo, MacDonald, Allan H., Shih, Chih-Kang, Yang, Li, Li, Xiaoqin

Many fascinating properties discovered in graphene and transition metal dichalcogenide (TMD) moir\'e superlattices originate from flat bands and enhanced many-body effects. Here, we discover new many-electron excited states in TMD homobilayers. As op

Externí odkaz: http://arxiv.org/abs/2407.17025

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Electrostatic moir\'e potential from twisted-hBN layers

Moir\'e superlattices formed by vertically stacking van der Waals layers host a rich variety of correlated electronic phases and function as novel photonic materials. The moir\'e potential of the superlattice, however, is fixed by the interlayer coup

Externí odkaz: http://arxiv.org/abs/2306.07841

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Quantum Dynamics of Attractive and Repulsive Polarons in a Doped MoSe$_2$ Monolayer

Autor: Huang, Di, Sampson, Kevin, Ni, Yue, Liu, Zhida, Liang, Danfu, Watanabe, Kenji, Taniguchi, Takashi, Li, Hebin, Martin, Eric, Levinsen, Jesper, Parish, Meera M., Tutuc, Emanuel, Efimkin, Dmitry K., Li, Xiaoqin

Publikováno v: Phys. Rev. X 13, 011029 (2023)

When mobile impurities are introduced and coupled to a Fermi sea, new quasiparticles known as Fermi polarons are formed. There are two interesting, yet drastically different regimes of the Fermi polaron problem: (I) the attractive polaron (AP) branch

Externí odkaz: http://arxiv.org/abs/2303.00907

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