{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,8]],"date-time":"2026-10-08T15:57:44Z","timestamp":1791475064104,"version":"4.3.4"},"reference-count":55,"publisher":"Wiley","issue":"56","license":[{"start":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T00:00:00Z","timestamp":1786320000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T00:00:00Z","timestamp":1786320000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["52573256"],"award-info":[{"award-number":["52573256"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["T2422016"],"award-info":[{"award-number":["T2422016"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["advanced.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Advanced Materials"],"published-print":{"date-parts":[[2026,10]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    The engineering of inversion symmetry breaking in 2D materials, for example via interlayer twist\u2010angle control, has initiated the \u20182D age\u2019 due to its transformation on the landscape of fundamental research and technological advances. The typical paradigms include nonlinear optical response, topological polar vortices, superconductivity, etc. In parallel, intrinsic structural defects induced inversion symmetry breaking also serves as a lever to create emerging physical phenomena. Here, we report on discovery of antisite defects induced exotic polarization waves in bismuth telluride (Bi\n                    <jats:sub>2<\/jats:sub>\n                    )\n                    <jats:sub>m<\/jats:sub>\n                    (Bi\n                    <jats:sub>2<\/jats:sub>\n                    Te\n                    <jats:sub>3<\/jats:sub>\n                    )\n                    <jats:sub>n<\/jats:sub>\n                    topological insulator thin films by using atomic\u2010resolution scanning transmission electron microscopy. Despite weak van der Waals (vdW) bonding, driven by stochastic antisite defects, a quasi\u2010cycloidal polarization order is observed along normal direction of the vdW interface in Bi\n                    <jats:sub>2<\/jats:sub>\n                    Te\n                    <jats:sub>3<\/jats:sub>\n                    phase. As metallic Bi\u2010Bi bilayer is replaced by Bi\u2010Te bilayer via regular Te\n                    <jats:sub>Bi<\/jats:sub>\n                    antisite defect, hyperbolic polarization waves are observed at septuple layers (SLs) of the Bi\n                    <jats:sub>8<\/jats:sub>\n                    Te\n                    <jats:sub>9<\/jats:sub>\n                    phase. Our first\u2010principles calculations reveal that the face\u2010shared unusual packing of acentric octahedral units and insufficient carrier screening are responsible for the polar metal states. Our findings provide a new degree of freedom to manipulate the physical properties of topological insulators (TIs) and their future device application.\n                  <\/jats:p>","DOI":"10.1002\/adma.74576","type":"journal-article","created":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T08:21:33Z","timestamp":1786350093000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Intrinsic Defect\u2010Induced Exotic Polarization Waves in Van der Waals Layered Topological Insulators"],"prefix":"10.1002","volume":"38","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4320-1120","authenticated-orcid":false,"given":"Xian\u2010Kui","family":"Wei","sequence":"first","affiliation":[{"name":"Ernst Ruska\u2010Centre for Microscopy and Spectroscopy with Electrons Research Center J\u00fclich  J\u00fclich Germany"},{"name":"College of Chemistry and Chemical Engineering Xiamen University  Xiamen China"},{"name":"Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM)  Xiamen China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Abdur Rehman","family":"Jalil","sequence":"additional","affiliation":[{"name":"Peter Gr\u00fcnberg Institut and JARA\u2010FIT Forschungszentrum J\u00fclich GmbH  J\u00fclich Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junjie","family":"Jiang","sequence":"additional","affiliation":[{"name":"Department of Physics Xiamen University  Xiamen China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qiankun","family":"Li","sequence":"additional","affiliation":[{"name":"School of Physical Science and Technology Jiangsu Key Laboratory of Thin Films Soochow University  Suzhou China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maoyuan","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Physics Xiamen University  Xiamen China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yang","family":"Sun","sequence":"additional","affiliation":[{"name":"Department of Physics Xiamen University  Xiamen China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lu","family":"You","sequence":"additional","affiliation":[{"name":"School of Physical Science and Technology Jiangsu Key Laboratory of Thin Films Soochow University  Suzhou 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