Topological kink plasmons on magnetic-domain boundaries

Dafei Jin; Yang Xia; Thomas Christensen; Matthew Freeman; Siqi Wang; King Yan Fong; Geoffrey C. Gardner; Saeed Fallahi; Qing Hu; Yuan Wang; Lloyd Engel; Zhi-Li Xiao; Michael J. Manfra; Nicholas X. Fang; Xiang Zhang

doi:10.1038/s41467-019-12092-x

Nature Communications (Oct 2019)

Topological kink plasmons on magnetic-domain boundaries

Dafei Jin,
Yang Xia,
Thomas Christensen,
Matthew Freeman,
Siqi Wang,
King Yan Fong,
Geoffrey C. Gardner,
Saeed Fallahi,
Qing Hu,
Yuan Wang,
Lloyd Engel,
Zhi-Li Xiao,
Michael J. Manfra,
Nicholas X. Fang,
Xiang Zhang

Affiliations

Dafei Jin: Nanoscale Science and Engineering Center, University of California
Yang Xia: Nanoscale Science and Engineering Center, University of California
Thomas Christensen: Department of Physics, Massachusetts Institute of Technology
Matthew Freeman: National High Magnetic Field Laboratory
Siqi Wang: Nanoscale Science and Engineering Center, University of California
King Yan Fong: Nanoscale Science and Engineering Center, University of California
Geoffrey C. Gardner: Microsoft Quantum Purdue and Birck Nanotechnology Center, Purdue University
Saeed Fallahi: Department of Physics and Astronomy and Birck Nanotechnology Center, Purdue University
Qing Hu: Department of Mechanical Engineering, Massachusetts Institute of Technology
Yuan Wang: Nanoscale Science and Engineering Center, University of California
Lloyd Engel: National High Magnetic Field Laboratory
Zhi-Li Xiao: Material Science Division, Argonne National Laboratory
Michael J. Manfra: Microsoft Quantum Purdue, Department of Physics and Astronomy, Birck Nanotechnology Center, Schools of Electrical and Computer Engineering and Materials Engineering, Purdue University
Nicholas X. Fang: Department of Mechanical Engineering, Massachusetts Institute of Technology
Xiang Zhang: Nanoscale Science and Engineering Center, University of California

DOI: https://doi.org/10.1038/s41467-019-12092-x
Journal volume & issue: Vol. 10, no. 1
pp. 1 – 9

Abstract

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Topological kink modes are peculiar edge excitations that take place at domain boundaries of magnetic fields inside homogeneous materials. Here, the authors experimentally observe kink magnetoplasmons in a 2D electron gas using custom-shaped strong permanent magnets on top of a GaAs/AlGaAs heterojunction.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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