In situ Characterization of the phase diagram of Ir via XRD coupled with RH and LH-DAC

In situ Characterization of the phase diagram of Ir via XRD coupled with RH and LH-DAC | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article In situ Characterization of the phase diagram of Ir via XRD coupled with RH and LH-DAC Simone Anzellini, Pablo Botella, Jose Luis Rodrigo Ramon, Aser Garcia-Baemud, and 6 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6990251/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 13 Oct, 2025 Read the published version in Communications Materials → Version 1 posted You are reading this latest preprint version Abstract The melting curve and phase diagram of pure Ir has been characterized in situ using a combination of synchrotron X-ray diffraction and laser- and resistively- heated diamond anvil cells. The results, obtained in a pressure-temperature range between ambient and 100 GPa and 5500 K, respectively, confirm the stability of the face-centered cubic solid phase of Ir and the melting curve previously predicted using quantum molecular dynamic simulations. Finally, from the results obtained it was possible to obtain a thermal equation of state for Ir valid up to at least 80 GPa and 4200 K. The reported results are relevant for the applications of Ir in various high-tech industries. Physical sciences/Materials science/Condensed-matter physics Physical sciences/Materials science/Condensed-matter physics/Structure of solids and liquids Melting Extreme Conditions Transition Metals Laser-heating Full Text Additional Declarations There is NO Competing Interest. Cite Share Download PDF Status: Published Journal Publication published 13 Oct, 2025 Read the published version in Communications Materials → Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-6990251","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":477469142,"identity":"935185b5-79a9-4ab3-847f-e40e03fd9901","order_by":0,"name":"Simone 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\u003cem\u003evia\u003c/em\u003e XRD coupled with RH and LH-DAC\u003c/p\u003e","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":true,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"nature-portfolio","isNatureJournal":true,"hasQc":false,"allowDirectSubmit":false,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"","title":"Nature Portfolio","twitterHandle":"","acdcEnabled":false,"dfaEnabled":false,"editorialSystem":"ejp","reportingPortfolio":"","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"Melting, Extreme Conditions, Transition Metals, Laser-heating","lastPublishedDoi":"10.21203/rs.3.rs-6990251/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-6990251/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"The melting curve and phase diagram of pure Ir has been characterized in situ\r\nusing a combination of synchrotron X-ray diffraction and laser- and resistively-\r\nheated diamond anvil cells. The results, obtained in a pressure-temperature range\r\nbetween ambient and 100 GPa and 5500 K, respectively, confirm the stability\r\nof the face-centered cubic solid phase of Ir and the melting curve previously\r\npredicted using quantum molecular dynamic simulations. Finally, from the results\r\nobtained it was possible to obtain a thermal equation of state for Ir valid up to at\r\nleast 80 GPa and 4200 K. The reported results are relevant for the applications\r\nof Ir in various high-tech industries.","manuscriptTitle":"In situ Characterization of the phase diagram of Ir via XRD coupled with RH and LH-DAC","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-07-04 10:05:18","doi":"10.21203/rs.3.rs-6990251/v1","editorialEvents":[],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"communications-materials","isNatureJournal":true,"hasQc":false,"allowDirectSubmit":false,"externalIdentity":"commsmat","sideBox":"Learn more about [Communications Materials](https://www.nature.com/commsmat/)","snPcode":"","submissionUrl":"","title":"Communications Materials","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"ejp","reportingPortfolio":"Communications Series","inReviewEnabled":true,"inReviewRevisionsEnabled":false}}],"origin":"","ownerIdentity":"5e4b65b5-a9e7-4fc9-88e4-fffdfd7b9226","owner":[],"postedDate":"July 4th, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"published-in-journal","subjectAreas":[{"id":51043740,"name":"Physical sciences/Materials science/Condensed-matter physics"},{"id":51043741,"name":"Physical sciences/Materials science/Condensed-matter physics/Structure of solids and liquids"}],"tags":[],"updatedAt":"2025-10-14T07:10:45+00:00","versionOfRecord":{"articleIdentity":"rs-6990251","link":"https://doi.org/10.1038/s43246-025-00963-4","journal":{"identity":"communications-materials","isVorOnly":false,"title":"Communications Materials"},"publishedOn":"2025-10-13 04:00:00","publishedOnDateReadable":"October 13th, 2025"},"versionCreatedAt":"2025-07-04 10:05:18","video":"","vorDoi":"10.1038/s43246-025-00963-4","vorDoiUrl":"https://doi.org/10.1038/s43246-025-00963-4","workflowStages":[]},"version":"v1","identity":"rs-6990251","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-6990251","identity":"rs-6990251","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}