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Tests on the helium, beryllium, neon, and argon isoelectronic series up to high nuclear charges show that the latter functional gives exchange energies with a maximal relative percentage error of 3%. The development of this exchange functional represents a step forward for the application of four-component relativistic range-separated density-functional theory to chemical compounds with heavy elements.<\/jats:p>","DOI":"10.1063\/5.0004926","type":"journal-article","created":{"date-parts":[[2020,6,3]],"date-time":"2020-06-03T10:55:20Z","timestamp":1591181720000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":10,"title":["Relativistic short-range exchange energy functionals beyond the local-density approximation"],"prefix":"10.1063","volume":"152","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0009-9744","authenticated-orcid":false,"given":"Julien","family":"Paquier","sequence":"first","affiliation":[{"name":"Laboratoire de Chimie Th\u00e9orique (LCT), Sorbonne Universit\u00e9 and CNRS 1 , F-75005 Paris, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6206-1103","authenticated-orcid":false,"given":"Emmanuel","family":"Giner","sequence":"additional","affiliation":[{"name":"Laboratoire de Chimie Th\u00e9orique (LCT), Sorbonne Universit\u00e9 and CNRS 1 , F-75005 Paris, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2855-1835","authenticated-orcid":false,"given":"Julien","family":"Toulouse","sequence":"additional","affiliation":[{"name":"Laboratoire de Chimie Th\u00e9orique (LCT), Sorbonne Universit\u00e9 and CNRS 1 , F-75005 Paris, France"},{"name":"Institut Universitaire de France 2 , F-75005 Paris, France"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"317","published-online":{"date-parts":[[2020,6,3]]},"reference":[{"key":"2023062601405795500_c1","first-page":"327","volume-title":"Recent Developments of Modern Density Functional Theory","author":"Seminario","year":"1996"},{"key":"2023062601405795500_c2","doi-asserted-by":"publisher","first-page":"062505","DOI":"10.1103\/physreva.70.062505","volume":"70","year":"2004","journal-title":"Phys. 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