激子
云纹
堆积
超晶格
凝聚态物理
电子
材料科学
扭转
量子隧道
物理
分子物理学
光学
量子力学
几何学
数学
核磁共振
作者
Shen Zhao,Xin Huang,Roland Gillen,Zhijie Li,Song Liu,Kenji Watanabe,Takashi Taniguchi,Janina Maultzsch,James Hone,Alexander Högele,Anvar S. Baimuratov
出处
期刊:Nano Letters
[American Chemical Society]
日期:2024-04-10
标识
DOI:10.1021/acs.nanolett.4c00541
摘要
We report experimental and theoretical studies of MoTe2-MoSe2 heterobilayers with rigid moiré superlattices controlled by the twist angle. Using an effective continuum model that combines resonant interlayer electron tunneling with stacking-dependent moiré potentials, we identify the nature of moiré excitons and the dependence of their energies, oscillator strengths, and Landé g-factors on the twist angle. Within the same framework, we interpret distinct signatures of bound complexes among electrons and moiré excitons in nearly collinear heterostacks. Our work provides a fundamental understanding of hybrid moiré excitons and trions in MoTe2-MoSe2 heterobilayers and establishes the material system as a prime candidate for optical studies of correlated phenomena in moiré lattices.
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