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Van der Waals materials

A terahertz source for quantum physics

Broadband terahertz emission from a two-dimensional van der Waals ferroelectric semiconductor, NbOI2, offers opportunities towards nanoscale near-field terahertz spectroscopy and in situ probing of quantum collective excitations in two-dimensional materials.

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Fig. 1: THz spectroscopy experimental schemes.

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Correspondence to Zui Tao or Su-Yang Xu.

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Tao, Z., Xu, SY. A terahertz source for quantum physics. Nat. Mater. 24, 1156–1157 (2025). https://doi.org/10.1038/s41563-025-02265-z

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