000011817 001__ 11817 000011817 005__ 20240523043732.0 000011817 02470 $$ahttps://doi.org/10.1021/acs.nanolett.4c00008$$2doi 000011817 037__ $$aTEXTUAL 000011817 037__ $$bArticle 000011817 041__ $$aeng 000011817 245__ $$aPreservation of Topological Surface States in Millimeter-Scale Transferred Membranes 000011817 269__ $$a2024-05-17 000011817 336__ $$aArticle 000011817 520__ $$aUltrathin topological insulator membranes are building blocks of exotic quantum matter. However, traditional epitaxy of these materials does not facilitate stacking in arbitrary orders, while mechanical exfoliation from bulk crystals is also challenging due to the non-negligible interlayer coupling therein. Here we liberate millimeter-scale films of the topological insulator Bi<sub>2</sub>Se<sub>3</sub>, grown by molecular beam epitaxy, down to 3 quintuple layers. We characterize the preservation of the topological surface states and quantum well states in transferred Bi<sub>2</sub>Se<sub>3</sub> films using angle-resolved photoemission spectroscopy. Leveraging the photon-energy-dependent surface sensitivity, the photoemission spectra taken with 6 and 21.2 eV photons reveal a transfer-induced migration of the topological surface states from the top to the inner layers. By establishing clear electronic structures of the transferred films and unveiling the wave function relocation of the topological surface states, our work lays the physics foundation crucial for the future fabrication of artificially stacked topological materials with single-layer precision. 000011817 536__ $$oBasic Energy Sciences, Department of Energy$$cDE-SC0023317 000011817 536__ $$oNational Science Foundation$$cDMR-2011854 000011817 536__ $$oNational Science Foundation$$aGraduate Research Fellowship 000011817 540__ $$a<p>© 2024 The Authors</p> <p>This work is licensed under the <a href="https://creativecommons.org/licenses/by-nc-nd/4.0/" target="_blank">Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License</a>.</p> 000011817 542__ $$fCC BY-NC-ND 000011817 6531_ $$aARPES 000011817 6531_ $$aBi2Se3 film 000011817 6531_ $$amillimeter-scale transfer 000011817 6531_ $$atopological insulator 000011817 690__ $$aPritzker School of Molecular Engineering 000011817 7001_ $$1https://orcid.org/0000-0001-7472-4835$$2ORCID$$aIp, Chi Ian Jess$$uUniversity of Chicago 000011817 7001_ $$1https://orcid.org/0000-0001-5992-4871$$2ORCID$$aGao, Qiang$$uUniversity of Chicago 000011817 7001_ $$1https://orcid.org/0000-0002-7360-4564$$2ORCID$$aNguyen, Khanh Duy$$uUniversity of Chicago 000011817 7001_ $$aYan, Chenhui$$uUniversity of Chicago 000011817 7001_ $$1https://orcid.org/0000-0002-4711-9063$$2ORCID$$aYan, Gangbin$$uUniversity of Chicago 000011817 7001_ $$aHoenig, Eli$$uUniversity of Chicago 000011817 7001_ $$aMarchese, Thomas S.$$uUniversity of Chicago 000011817 7001_ $$aZhang, Minghao$$uUniversity of California, San Diego 000011817 7001_ $$1https://orcid.org/0000-0003-4705-6522$$2ORCID$$aLee, Woojoo$$uUniversity of Chicago 000011817 7001_ $$aRokni, Hossein$$uUniversity of Chicago 000011817 7001_ $$1https://orcid.org/0000-0001-8936-8845$$2ORCID$$aMeng, Ying Shirley$$uUniversity of Chicago 000011817 7001_ $$1https://orcid.org/0000-0003-4851-7888$$2ORCID$$aLiu, Chong$$uUniversity of Chicago 000011817 7001_ $$1https://orcid.org/0000-0002-8200-9898$$2ORCID$$aYang, Shuolong$$uUniversity of Chicago 000011817 773__ $$tNano Letters 000011817 8564_ $$yArticle$$98046a871-d5de-4b51-8bc0-0a9409541e11$$s4545108$$uhttps://knowledge.uchicago.edu/record/11817/files/Preservation-of-Topological-Surface-States-in-Millimeter-Scale-Transferred-Membranes.pdf$$ePublic 000011817 8564_ $$ySupporting information$$92139f5e8-8f75-45e0-9149-676d48f62273$$s12303022$$uhttps://knowledge.uchicago.edu/record/11817/files/nl4c00008_si_001.pdf$$ePublic 000011817 908__ $$aI agree 000011817 909CO $$ooai:uchicago.tind.io:11817$$pGLOBAL_SET 000011817 983__ $$aArticle