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Phys.: Condens. Matter"],"published-print":{"date-parts":[[2024,10,9]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>By incorporating inert KCl into the Na<jats:sub>2<\/jats:sub>IrO<jats:sub>3<\/jats:sub> + 2CuCl \u2192 Cu<jats:sub>2<\/jats:sub>IrO<jats:sub>3<\/jats:sub> + 2NaCl topochemical reaction, we significantly reduced the synthesis temperature of Cu<jats:sub>2<\/jats:sub>IrO<jats:sub>3<\/jats:sub> from the 350 \u00b0C reported in previous studies to 170 \u00b0C. This adjustment decreased the Cu\/Ir antisite disorder concentration in Cu<jats:sub>2<\/jats:sub>IrO<jats:sub>3<\/jats:sub> from \u223c19% to \u223c5%. Furthermore, magnetic susceptibility measurements of the present Cu<jats:sub>2<\/jats:sub>IrO<jats:sub>3<\/jats:sub> sample revealed a weak ferromagnetic-like anomaly with hysteresis at a magnetic transition temperature of \u223c70 K. Our research indicates that the spin-disordered ground state reported in chemically disordered Cu<jats:sub>2<\/jats:sub>IrO<jats:sub>3<\/jats:sub> is an extrinsic phenomenon, rather than an intrinsic one, underscoring the pivotal role of synthetic chemistry in understanding the application of Kitaev model to realistic materials.<\/jats:p>","DOI":"10.1088\/1361-648x\/ad5d3a","type":"journal-article","created":{"date-parts":[[2024,6,28]],"date-time":"2024-06-28T18:29:45Z","timestamp":1719599385000},"page":"405801","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":6,"title":["High-temperature magnetic anomaly via suppression of antisite disorder through synthesis route modification in a Kitaev candidate Cu<sub>2<\/sub>IrO<sub>3<\/sub>"],"prefix":"10.1088","volume":"36","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6951-5112","authenticated-orcid":true,"given":"Yuya","family":"Haraguchi","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daisuke","family":"Nishio-Hamane","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Akira","family":"Matsuo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Koichi","family":"Kindo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiroko Aruga","family":"Katori","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"266","published-online":{"date-parts":[[2024,7,8]]},"reference":[{"key":"cmad5d3abib1","doi-asserted-by":"publisher","first-page":"199","DOI":"10.1038\/nature08917","volume":"464","author":"Balents","year":"2010","journal-title":"Nature"},{"key":"cmad5d3abib2","doi-asserted-by":"publisher","DOI":"10.1088\/0034-4885\/80\/1\/016502","volume":"80","author":"Savary","year":"2016","journal-title":"Rep. 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All rights, including for text and data mining, AI training, and similar technologies, are reserved.","name":"copyright_information","label":"Copyright Information"},{"value":"2024-02-28","name":"date_received","label":"Date Received","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2024-06-28","name":"date_accepted","label":"Date Accepted","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2024-07-08","name":"date_epub","label":"Online publication date","group":{"name":"publication_dates","label":"Publication dates"}}]}}