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Phys."],"abstract":"<jats:p>\n                    This work reveals synergistically driven high-order anharmonicity in K\n                    <jats:sub>3<\/jats:sub>\n                    Au\n                    <jats:sub>3<\/jats:sub>\n                    Sb\n                    <jats:sub>2<\/jats:sub>\n                    , leading to ultralow lattice thermal conductivity and a peak\n                    <jats:italic>ZT<\/jats:italic>\n                    of \u223c4.17 at 900 K, offering a new paradigm for high-performance thermoelectrics.\n                  <\/jats:p>","DOI":"10.1039\/d5cp04931h","type":"journal-article","created":{"date-parts":[[2026,5,14]],"date-time":"2026-05-14T01:02:18Z","timestamp":1778720538000},"page":"14585-14594","update-policy":"https:\/\/doi.org\/10.1039\/rsc_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Large thermoelectric effect driven by high-order anharmonicity from synergistic lone-pair electrons and rattling modes in K\n                    <sub>3<\/sub>\n                    Au\n                    <sub>3<\/sub>\n                    Sb\n                    <sub>2<\/sub>"],"prefix":"10.1039","volume":"28","author":[{"given":"Yibo","family":"Gao","sequence":"first","affiliation":[{"name":"School of Physics, Hunan Key Laboratory of Super Microstructure and Ultrafast Process, Hunan Key Laboratory of Nanophotonics and Devices, State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ting","family":"Zhao","sequence":"additional","affiliation":[{"name":"School of Physics, Hunan Key Laboratory of Super Microstructure and Ultrafast Process, Hunan Key Laboratory of Nanophotonics and Devices, State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Min","family":"Li","sequence":"additional","affiliation":[{"name":"School of Physics, Hunan Key Laboratory of Super Microstructure and Ultrafast Process, Hunan Key Laboratory of Nanophotonics and Devices, State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9972-2019","authenticated-orcid":false,"given":"Hui","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Physics, Hunan Key Laboratory of Super Microstructure and Ultrafast Process, Hunan Key Laboratory of Nanophotonics and Devices, State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"292","published-online":{"date-parts":[[2026]]},"reference":[{"key":"D5CP04931H\/cit1\/1","doi-asserted-by":"crossref","first-page":"073902","DOI":"10.1063\/5.0081930","volume":"120","author":"Li","year":"2022","journal-title":"Appl. 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