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For T &amp;gt; 225\u00a0K, the sample shows activated transport.. The metallic-like behavior at low temperatures can be understood within a model of overlapping surface states of the TI nanocrystallites in the film, suggesting that TI thin films of polycrystalline nature may also stabilize topologically protected states.<\/jats:p>","DOI":"10.1063\/5.0136626","type":"journal-article","created":{"date-parts":[[2023,2,14]],"date-time":"2023-02-14T15:02:36Z","timestamp":1676386956000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":12,"title":["Topological insulator phases in polycrystalline Bi2Te3 thin films"],"prefix":"10.1063","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5561-5550","authenticated-orcid":false,"given":"Jeswin Mammen","family":"Raju","sequence":"first","affiliation":[{"name":"Department of Physics, Central University of Kerala , Kasaragod, Kerala 671316, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2731-2325","authenticated-orcid":false,"given":"Kalarikad Jonah","family":"Thomas","sequence":"additional","affiliation":[{"name":"Department of Physics, Central University of Kerala , Kasaragod, Kerala 671316, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"317","published-online":{"date-parts":[[2023,2,14]]},"reference":[{"key":"2023081022570250400_c1","doi-asserted-by":"publisher","first-page":"194","DOI":"10.1038\/nature08916","article-title":"The birth of topological insulators","volume":"464","year":"2010","journal-title":"Nature"},{"key":"2023081022570250400_c2","doi-asserted-by":"publisher","first-page":"3045","DOI":"10.1103\/revmodphys.82.3045","article-title":"Colloquium: Topological insulators","volume":"82","year":"2010","journal-title":"Rev. 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