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Giant magneto-birefringence effect and tuneable colouration of 2D crystal suspensions

Author

Listed:
  • Baofu Ding

    (Tsinghua University)

  • Wenjun Kuang

    (University of Manchester)

  • Yikun Pan

    (Tsinghua University)

  • I. V. Grigorieva

    (University of Manchester)

  • A. K. Geim

    (Tsinghua University
    University of Manchester)

  • Bilu Liu

    (Tsinghua University)

  • Hui-Ming Cheng

    (Tsinghua University
    Chinese Academy of Sciences
    University of Surrey)

Abstract

One of the long-sought-after goals in light manipulation is tuning of transmitted interference colours. Previous approaches toward this goal include material chirality, strain and electric-field controls. Alternatively, colour control by magnetic field offers contactless, non-invasive and energy-free advantages but has remained elusive due to feeble magneto-birefringence in conventional transparent media. Here we demonstrate an anomalously large magneto-birefringence effect in transparent suspensions of magnetic two-dimensional crystals, which arises from a combination of a large Cotton-Mouton coefficient and relatively high magnetic saturation birefringence. The effect is orders of magnitude stronger than those previously demonstrated for transparent materials. The transmitted colours of the suspension can be continuously tuned over two-wavelength cycles by moderate magnetic fields below 0.8 T. The work opens a new avenue to tune transmitted colours, and can be further extended to other systems with artificially engineered magnetic birefringence.

Suggested Citation

  • Baofu Ding & Wenjun Kuang & Yikun Pan & I. V. Grigorieva & A. K. Geim & Bilu Liu & Hui-Ming Cheng, 2020. "Giant magneto-birefringence effect and tuneable colouration of 2D crystal suspensions," Nature Communications, Nature, vol. 11(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17589-4
    DOI: 10.1038/s41467-020-17589-4
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    Cited by:

    1. Baofu Ding & Pengyuan Zeng & Ziyang Huang & Lixin Dai & Tianshu Lan & Hao Xu & Yikun Pan & Yuting Luo & Qiangmin Yu & Hui-Ming Cheng & Bilu Liu, 2022. "A 2D material–based transparent hydrogel with engineerable interference colours," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    2. Chenchen Meng & Baofu Ding & Shaoze Zhang & Lele Cui & Kostya Ken Ostrikov & Ziyang Huang & Bo Yang & Jae-Hong Kim & Zhenghua Zhang, 2022. "Angstrom-confined catalytic water purification within Co-TiOx laminar membrane nanochannels," Nature Communications, Nature, vol. 13(1), pages 1-10, December.

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