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Observation of a phononic quadrupole topological insulator

Author

Listed:
  • Marc Serra-Garcia

    (Institute for Theoretical Physics, ETH Zurich)

  • Valerio Peri

    (Institute for Theoretical Physics, ETH Zurich)

  • Roman Süsstrunk

    (Institute for Theoretical Physics, ETH Zurich)

  • Osama R. Bilal

    (Institute for Theoretical Physics, ETH Zurich
    California Institute of Technology)

  • Tom Larsen

    (Advanced NEMS Group, École Polytechnique Fédérale de Lausanne (EPFL))

  • Luis Guillermo Villanueva

    (Advanced NEMS Group, École Polytechnique Fédérale de Lausanne (EPFL))

  • Sebastian D. Huber

    (Institute for Theoretical Physics, ETH Zurich)

Abstract

A two-dimensional phononic quadrupole topological insulator is demonstrated experimentally using mechanical metamaterials, which has both the one-dimensional edge states and the zero-dimensional corner states predicted by theory.

Suggested Citation

  • Marc Serra-Garcia & Valerio Peri & Roman Süsstrunk & Osama R. Bilal & Tom Larsen & Luis Guillermo Villanueva & Sebastian D. Huber, 2018. "Observation of a phononic quadrupole topological insulator," Nature, Nature, vol. 555(7696), pages 342-345, March.
    • Handle: RePEc:nat:nature:v:555:y:2018:i:7696:d:10.1038_nature25156
    DOI: 10.1038/nature25156
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    Citations

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    Cited by:

    1. Guoqiang Xu & Xue Zhou & Shuihua Yang & Jing Wu & Cheng-Wei Qiu, 2023. "Observation of bulk quadrupole in topological heat transport," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    2. Xiao-Chen Sun & Hao Chen & Hua-Shan Lai & Chu-Hao Xia & Cheng He & Yan-Feng Chen, 2023. "Ideal acoustic quantum spin Hall phase in a multi-topology platform," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    3. Sasha S. Yamada & Tianhe Li & Mao Lin & Christopher W. Peterson & Taylor L. Hughes & Gaurav Bahl, 2022. "Bound states at partial dislocation defects in multipole higher-order topological insulators," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    4. Weiwei Zhu & Haoran Xue & Jiangbin Gong & Yidong Chong & Baile Zhang, 2022. "Time-periodic corner states from Floquet higher-order topology," Nature Communications, Nature, vol. 13(1), pages 1-6, December.
    5. Tianyi Hu & Weiliang Zhong & Tingfeng Zhang & Weihua Wang & Z. F. Wang, 2023. "Identifying topological corner states in two-dimensional metal-organic frameworks," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    6. Matthew Weiner & Xiang Ni & Andrea Alù & Alexander B. Khanikaev, 2022. "Synthetic Pseudo-Spin-Hall effect in acoustic metamaterials," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    7. Mehmet Berkay On & Farshid Ashtiani & David Sanchez-Jacome & Daniel Perez-Lopez & S. J. Ben Yoo & Andrea Blanco-Redondo, 2024. "Programmable integrated photonics for topological Hamiltonians," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    8. Wenting Cheng & Alexander Cerjan & Ssu-Ying Chen & Emil Prodan & Terry A. Loring & Camelia Prodan, 2023. "Revealing topology in metals using experimental protocols inspired by K-theory," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    9. Haoran Xue & Z. Y. Chen & Zheyu Cheng & J. X. Dai & Yang Long & Y. X. Zhao & Baile Zhang, 2023. "Stiefel-Whitney topological charges in a three-dimensional acoustic nodal-line crystal," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    10. Yuang Pan & Chaoxi Cui & Qiaolu Chen & Fujia Chen & Li Zhang & Yudong Ren & Ning Han & Wenhao Li & Xinrui Li & Zhi-Ming Yu & Hongsheng Chen & Yihao Yang, 2023. "Real higher-order Weyl photonic crystal," Nature Communications, Nature, vol. 14(1), pages 1-7, December.
    11. Deyuan Zou & Tian Chen & Wenjing He & Jiacheng Bao & Ching Hua Lee & Houjun Sun & Xiangdong Zhang, 2021. "Observation of hybrid higher-order skin-topological effect in non-Hermitian topolectrical circuits," Nature Communications, Nature, vol. 12(1), pages 1-11, December.
    12. Weixuan Zhang & Fengxiao Di & Xingen Zheng & Houjun Sun & Xiangdong Zhang, 2023. "Hyperbolic band topology with non-trivial second Chern numbers," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    13. Florian Allein & Adamantios Anastasiadis & Rajesh Chaunsali & Ian Frankel & Nicholas Boechler & Fotios K. Diakonos & Georgios Theocharis, 2023. "Strain topological metamaterials and revealing hidden topology in higher-order coordinates," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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