Thermally controlled topological states for elastic waves
Developing a tunable phononic crystal (PC) based on relatively simple technology is challenging. Herein, we report a thermally controlled two-dimensional PC which consists of a honeycomb array of thermosensitive perovskite ferroelectric scatterers. The inversion symmetry of the PC is broken, and the...
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| Veröffentlicht in: | Applied physics letters 2019-12, Vol.115 (25) |
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| container_title | Applied physics letters |
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| creator | Tang, Haocheng Li, Honglang Xie, Xiang Zhang, Yue Guo, Lianbo Zhao, Degang Luo, Wei |
| description | Developing a tunable phononic crystal (PC) based on relatively simple technology is challenging. Herein, we report a thermally controlled two-dimensional PC which consists of a honeycomb array of thermosensitive perovskite ferroelectric scatterers. The inversion symmetry of the PC is broken, and the topological properties of the band structure are readily tuned by heating the scatterers in a well-controlled manner to form a temperature gradient in the unit cell. Numerical simulation is used to demonstrate the one-way propagation of the edge state along the interface between two PCs with different topological properties and robustness of the edge states against defects. The propagation of the interfacial wave can be tuned extensively by varying the temperature in a few unit cells of the honeycomb lattice array. The present study could be potentially significant in designing tunable, efficient, and multifunctional acoustic devices. |
| doi_str_mv | 10.1063/1.5123178 |
| format | Article |
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Herein, we report a thermally controlled two-dimensional PC which consists of a honeycomb array of thermosensitive perovskite ferroelectric scatterers. The inversion symmetry of the PC is broken, and the topological properties of the band structure are readily tuned by heating the scatterers in a well-controlled manner to form a temperature gradient in the unit cell. Numerical simulation is used to demonstrate the one-way propagation of the edge state along the interface between two PCs with different topological properties and robustness of the edge states against defects. The propagation of the interfacial wave can be tuned extensively by varying the temperature in a few unit cells of the honeycomb lattice array. The present study could be potentially significant in designing tunable, efficient, and multifunctional acoustic devices.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/1.5123178</identifier><identifier>CODEN: APPLAB</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Applied physics ; Arrays ; Computer simulation ; Crystal defects ; Elastic waves ; Ferroelectric materials ; Ferroelectricity ; Perovskites ; Robustness (mathematics) ; Temperature gradients ; Topology ; Unit cell ; Wave propagation</subject><ispartof>Applied physics letters, 2019-12, Vol.115 (25)</ispartof><rights>Author(s)</rights><rights>2019 Author(s). 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The present study could be potentially significant in designing tunable, efficient, and multifunctional acoustic devices.</description><subject>Applied physics</subject><subject>Arrays</subject><subject>Computer simulation</subject><subject>Crystal defects</subject><subject>Elastic waves</subject><subject>Ferroelectric materials</subject><subject>Ferroelectricity</subject><subject>Perovskites</subject><subject>Robustness (mathematics)</subject><subject>Temperature gradients</subject><subject>Topology</subject><subject>Unit cell</subject><subject>Wave propagation</subject><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp90EtLAzEQB_AgCtbqwW-w4Elha7LZvI5SfEHBSz2HNA_dkm7WJK302xvZogfB0zDMjxnmD8AlgjMEKb5FM4IajBg_AhMEGasxQvwYTCCEuKaCoFNwltK6tKTBeALE8t3GjfJ-X-nQ5xi8t6bKYQg-vHVa-SpllW2qXIiV9SrlTlefamfTOThxyid7cahT8Ppwv5w_1YuXx-f53aLWuGG5NpS31BkGodC8MUysWgJbyqAlgtmWaOEY51ibMm9WUCnCsNaKGKc0FhbjKbga9w4xfGxtynIdtrEvJ2VTLlBMGSdFXY9Kx5BStE4OsduouJcIyu9kJJKHZIq9GW3SXXmuC_0P3oX4C-Vg3H_47-YvyeRxDQ</recordid><startdate>20191216</startdate><enddate>20191216</enddate><creator>Tang, Haocheng</creator><creator>Li, Honglang</creator><creator>Xie, Xiang</creator><creator>Zhang, Yue</creator><creator>Guo, Lianbo</creator><creator>Zhao, Degang</creator><creator>Luo, Wei</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-4910-5247</orcidid></search><sort><creationdate>20191216</creationdate><title>Thermally controlled topological states for elastic waves</title><author>Tang, Haocheng ; Li, Honglang ; Xie, Xiang ; Zhang, Yue ; Guo, Lianbo ; Zhao, Degang ; Luo, Wei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c327t-d6846fd7009c82d79b4504670e597e45c9f7883cd09c2b0aa573cca5dfac39e33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Applied physics</topic><topic>Arrays</topic><topic>Computer simulation</topic><topic>Crystal defects</topic><topic>Elastic waves</topic><topic>Ferroelectric materials</topic><topic>Ferroelectricity</topic><topic>Perovskites</topic><topic>Robustness (mathematics)</topic><topic>Temperature gradients</topic><topic>Topology</topic><topic>Unit cell</topic><topic>Wave propagation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tang, Haocheng</creatorcontrib><creatorcontrib>Li, Honglang</creatorcontrib><creatorcontrib>Xie, Xiang</creatorcontrib><creatorcontrib>Zhang, Yue</creatorcontrib><creatorcontrib>Guo, Lianbo</creatorcontrib><creatorcontrib>Zhao, Degang</creatorcontrib><creatorcontrib>Luo, Wei</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied physics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tang, Haocheng</au><au>Li, Honglang</au><au>Xie, Xiang</au><au>Zhang, Yue</au><au>Guo, Lianbo</au><au>Zhao, Degang</au><au>Luo, Wei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Thermally controlled topological states for elastic waves</atitle><jtitle>Applied physics letters</jtitle><date>2019-12-16</date><risdate>2019</risdate><volume>115</volume><issue>25</issue><issn>0003-6951</issn><eissn>1077-3118</eissn><coden>APPLAB</coden><abstract>Developing a tunable phononic crystal (PC) based on relatively simple technology is challenging. 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| ispartof | Applied physics letters, 2019-12, Vol.115 (25) |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Applied physics Arrays Computer simulation Crystal defects Elastic waves Ferroelectric materials Ferroelectricity Perovskites Robustness (mathematics) Temperature gradients Topology Unit cell Wave propagation |
| title | Thermally controlled topological states for elastic waves |
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