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Excitons and emergent quantum phenomena in stacked 2D semiconductors

Author

Listed:
  • Nathan P. Wilson

    (University of Washington
    Technical University of Munich
    Munich Centre for Quantum Science and Technology)

  • Wang Yao

    (University of Hong Kong
    HKU-UCAS Joint Institute of Theoretical and Computational Physics at Hong Kong)

  • Jie Shan

    (Cornell University)

  • Xiaodong Xu

    (University of Washington
    University of Washington)

Abstract

The design and control of material interfaces is a foundational approach to realize technologically useful effects and engineer material properties. This is especially true for two-dimensional (2D) materials, where van der Waals stacking allows disparate materials to be freely stacked together to form highly customizable interfaces. This has underpinned a recent wave of discoveries based on excitons in stacked double layers of transition metal dichalcogenides (TMDs), the archetypal family of 2D semiconductors. In such double-layer structures, the elegant interplay of charge, spin and moiré superlattice structure with many-body effects gives rise to diverse excitonic phenomena and correlated physics. Here we review some of the recent discoveries that highlight the versatility of TMD double layers to explore quantum optics and many-body effects. We identify outstanding challenges in the field and present a roadmap for unlocking the full potential of excitonic physics in TMD double layers and beyond, such as incorporating newly discovered ferroelectric and magnetic materials to engineer symmetries and add a new level of control to these remarkable engineered materials.

Suggested Citation

  • Nathan P. Wilson & Wang Yao & Jie Shan & Xiaodong Xu, 2021. "Excitons and emergent quantum phenomena in stacked 2D semiconductors," Nature, Nature, vol. 599(7885), pages 383-392, November.
    • Handle: RePEc:nat:nature:v:599:y:2021:i:7885:d:10.1038_s41586-021-03979-1
    DOI: 10.1038/s41586-021-03979-1
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    Cited by:

    1. Hanlin Fang & Qiaoling Lin & Yi Zhang & Joshua Thompson & Sanshui Xiao & Zhipei Sun & Ermin Malic & Saroj P. Dash & Witlef Wieczorek, 2023. "Localization and interaction of interlayer excitons in MoSe2/WSe2 heterobilayers," Nature Communications, Nature, vol. 14(1), pages 1-7, December.
    2. Faran Zhou & Kyle Hwangbo & Qi Zhang & Chong Wang & Lingnan Shen & Jiawei Zhang & Qianni Jiang & Alfred Zong & Yifan Su & Marc Zajac & Youngjun Ahn & Donald A. Walko & Richard D. Schaller & Jiun-Haw C, 2022. "Dynamical criticality of spin-shear coupling in van der Waals antiferromagnets," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    3. Shuai Zhang & Yang Liu & Zhiyuan Sun & Xinzhong Chen & Baichang Li & S. L. Moore & Song Liu & Zhiying Wang & S. E. Rossi & Ran Jing & Jordan Fonseca & Birui Yang & Yinming Shao & Chun-Ying Huang & Tak, 2023. "Visualizing moiré ferroelectricity via plasmons and nano-photocurrent in graphene/twisted-WSe2 structures," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    4. Sara A. López-Paz & Zurab Guguchia & Vladimir Y. Pomjakushin & Catherine Witteveen & Antonio Cervellino & Hubertus Luetkens & Nicola Casati & Alberto F. Morpurgo & Fabian O. von Rohr, 2022. "Dynamic magnetic crossover at the origin of the hidden-order in van der Waals antiferromagnet CrSBr," Nature Communications, Nature, vol. 13(1), pages 1-10, December.

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