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https://hdl.handle.net/10356/84076
Title: | Synthetic-gauge-field-induced Dirac semimetal state in an acoustic resonator system | Authors: | Yang, Zhaoju Gao, Fei Shi, Xihang Zhang, Baile |
Keywords: | Dirac node Synthetic gauge field |
Issue Date: | 2016 | Source: | Yang, Z., Gao, F., Shi, X., & Zhang, B. (2016). Synthetic-gauge-field-induced Dirac semimetal state in an acoustic resonator system. New Journal of Physics, 18, 125003-. | Series/Report no.: | New Journal of Physics | Abstract: | Recently, a proposal of synthetic gauge field in reduced two-dimensional (2D) system from three-dimensional (3D) acoustic structure shows an analogue of the gapped Haldane model with fixed k z , and achieves the gapless Weyl semimetal phase in 3D momentum space. Here, extending this approach of synthetic gauge flux, we propose a reduced square lattice of acoustic resonators, which exhibits Dirac nodes with broken effective time-reversal symmetry. Protected by an additional hidden symmetry, these Dirac nodes with quantized values of topological charge are characterized by nonzero winding number and the finite structure exhibits flat edge modes that cannot be destroyed by perturbations. | URI: | https://hdl.handle.net/10356/84076 http://hdl.handle.net/10220/42919 |
ISSN: | 1367-2630 | DOI: | 10.1088/1367-2630/aa4fa9 | Rights: | © 2016 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | SPMS Journal Articles |
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Synthetic-gauge-field-induced Dirac semimetal state in an acoustic resonator system.pdf | 1.96 MB | Adobe PDF | ![]() View/Open |
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