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Opto-spintronics

Probing light chirality and spin in two dimensions

By constructing vertical tunnel junctions based on few-layer indium selenide, a chirality-sensitive detection method is developed, enabling the investigation of the interaction between chiral light and spin in the two-dimensional limit.

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Fig. 1: Chirality-sensitive tunnelling photocurrent in a few-layer InSe heterojunction.

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Correspondence to Ning Kang or Lian-Mao Peng.

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Kang, N., Peng, LM. Probing light chirality and spin in two dimensions. Nat. Mater. 24, 165–166 (2025). https://doi.org/10.1038/s41563-024-02110-9

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