{"publisher":"American Physical Society","publication_identifier":{"issn":["2643-1564"]},"volume":3,"issue":"2","article_type":"original","scopus_import":"1","publication_status":"published","oa_version":"Published Version","type":"journal_article","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png"},"day":"27","article_processing_charge":"No","article_number":"023075","file_date_updated":"2022-09-09T07:23:40Z","publication":"Physical Review Research","year":"2021","abstract":[{"text":"Despite many efforts to rationalize the strongly correlated electronic ground states in doped Mott insulators, the nature of the doping-induced insulator-to-metal transition is still a subject under intensive investigation. Here, we probe the nanoscale electronic structure of the Mott insulator Sr₂IrO₄δ with low-temperature scanning tunneling microscopy and find an enhanced local density of states (LDOS) inside the Mott gap at the location of individual defects which we interpret as defects at apical oxygen sites. A chiral behavior in the topography for those defects has been observed. We also visualize the local enhanced conductance arising from the overlapping of defect states which induces finite LDOS inside of the Mott gap. By combining these findings with the typical spatial extension of isolated defects of about 2 nm, our results indicate that the insulator-to-metal transition in Sr₂IrO₄−δ could be percolative in nature.","lang":"eng"}],"doi":"10.1103/physrevresearch.3.023075","citation":{"ista":"Sun Z, Guevara JM, Sykora S, Paerschke E, Manna K, Maljuk A, Wurmehl S, van den Brink J, Büchner B, Hess C. 2021. Evidence for a percolative Mott insulator-metal transition in doped Sr₂IrO₄. Physical Review Research. 3(2), 023075.","mla":"Sun, Zhixiang, et al. “Evidence for a Percolative Mott Insulator-Metal Transition in Doped Sr₂IrO₄.” <i>Physical Review Research</i>, vol. 3, no. 2, 023075, American Physical Society, 2021, doi:<a href=\"https://doi.org/10.1103/physrevresearch.3.023075\">10.1103/physrevresearch.3.023075</a>.","apa":"Sun, Z., Guevara, J. M., Sykora, S., Paerschke, E., Manna, K., Maljuk, A., … Hess, C. (2021). Evidence for a percolative Mott insulator-metal transition in doped Sr₂IrO₄. <i>Physical Review Research</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevresearch.3.023075\">https://doi.org/10.1103/physrevresearch.3.023075</a>","chicago":"Sun, Zhixiang, Jose M. Guevara, Steffen Sykora, Ekaterina Paerschke, Kaustuv Manna, Andrey Maljuk, Sabine Wurmehl, Jeroen van den Brink, Bernd Büchner, and Christian Hess. “Evidence for a Percolative Mott Insulator-Metal Transition in Doped Sr₂IrO₄.” <i>Physical Review Research</i>. American Physical Society, 2021. <a href=\"https://doi.org/10.1103/physrevresearch.3.023075\">https://doi.org/10.1103/physrevresearch.3.023075</a>.","ieee":"Z. Sun <i>et al.</i>, “Evidence for a percolative Mott insulator-metal transition in doped Sr₂IrO₄,” <i>Physical Review Research</i>, vol. 3, no. 2. American Physical Society, 2021.","ama":"Sun Z, Guevara JM, Sykora S, et al. Evidence for a percolative Mott insulator-metal transition in doped Sr₂IrO₄. <i>Physical Review Research</i>. 2021;3(2). doi:<a href=\"https://doi.org/10.1103/physrevresearch.3.023075\">10.1103/physrevresearch.3.023075</a>","short":"Z. Sun, J.M. Guevara, S. Sykora, E. Paerschke, K. Manna, A. Maljuk, S. Wurmehl, J. van den Brink, B. Büchner, C. Hess, Physical Review Research 3 (2021)."},"date_created":"2022-09-08T15:01:16Z","has_accepted_license":"1","_id":"12071","ddc":["530"],"title":"Evidence for a percolative Mott insulator-metal transition in doped Sr₂IrO₄","author":[{"last_name":"Sun","full_name":"Sun, Zhixiang","first_name":"Zhixiang"},{"first_name":"Jose M.","full_name":"Guevara, Jose M.","last_name":"Guevara"},{"full_name":"Sykora, Steffen","last_name":"Sykora","first_name":"Steffen"},{"id":"8275014E-6063-11E9-9B7F-6338E6697425","first_name":"Ekaterina","orcid":"0000-0003-0853-8182","full_name":"Paerschke, Ekaterina","last_name":"Paerschke"},{"last_name":"Manna","full_name":"Manna, Kaustuv","first_name":"Kaustuv"},{"first_name":"Andrey","full_name":"Maljuk, Andrey","last_name":"Maljuk"},{"full_name":"Wurmehl, Sabine","last_name":"Wurmehl","first_name":"Sabine"},{"last_name":"van den Brink","full_name":"van den Brink, Jeroen","first_name":"Jeroen"},{"first_name":"Bernd","full_name":"Büchner, Bernd","last_name":"Büchner"},{"first_name":"Christian","full_name":"Hess, Christian","last_name":"Hess"}],"date_published":"2021-04-27T00:00:00Z","oa":1,"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","month":"04","intvolume":"         3","language":[{"iso":"eng"}],"quality_controlled":"1","file":[{"date_created":"2022-09-09T07:23:40Z","file_size":4020901,"file_name":"2021_PhysicalRevResearch_Sun.pdf","file_id":"12075","content_type":"application/pdf","success":1,"access_level":"open_access","date_updated":"2022-09-09T07:23:40Z","relation":"main_file","creator":"dernst","checksum":"73f1331b9716295849e87a7d3acd9323"}],"date_updated":"2022-09-09T07:26:01Z","status":"public","extern":"1"}