000086236 001__ 86236
000086236 005__ 20200716101541.0
000086236 0247_ $$2doi$$a10.1038/s41598-019-45401-x
000086236 0248_ $$2sideral$$a114757
000086236 037__ $$aART-2019-114757
000086236 041__ $$aeng
000086236 100__ $$aMonteseguro, V.
000086236 245__ $$aPhase stability and electronic structure of iridium metal at the megabar range
000086236 260__ $$c2019
000086236 5060_ $$aAccess copy available to the general public$$fUnrestricted
000086236 5203_ $$aThe 5d transition metals have attracted specific interest for high-pressure studies due to their extraordinary stability and intriguing electronic properties. In particular, iridium metal has been proposed to exhibit a recently discovered pressure-induced electronic transition, the so-called core-level crossing transition at the lowest pressure among all the 5d transition metals. Here, we report an experimental structural characterization of iridium by x-ray probes sensitive to both long- and short-range order in matter. Synchrotron-based powder x-ray diffraction results highlight a large stability range (up to 1.4 Mbar) of the low-pressure phase. The compressibility behaviour was characterized by an accurate determination of the pressure-volume equation of state, with a bulk modulus of 339(3) GPa and its derivative of 5.3(1). X-ray absorption spectroscopy, which probes the local structure and the empty density of electronic states above the Fermi level, was also utilized. The remarkable agreement observed between experimental and calculated spectra validates the reliability of theoretical predictions of the pressure dependence of the electronic structure of iridium in the studied interval of compressions.
000086236 536__ $$9info:eu-repo/grantAgreement/ES/MICINN/FJCI-2016-27921$$9info:eu-repo/grantAgreement/ES/MINECO/FIS2017-83295-P$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2016-75586-C4-1-P$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2016-75586-C4-2-P$$9info:eu-repo/grantAgreement/ES/MINECO/RYC-2015-17482
000086236 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000086236 590__ $$a3.998$$b2019
000086236 591__ $$aMULTIDISCIPLINARY SCIENCES$$b17 / 71 = 0.239$$c2019$$dQ1$$eT1
000086236 592__ $$a1.341$$b2019
000086236 593__ $$aMultidisciplinary$$c2019$$dQ1
000086236 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000086236 700__ $$aSans, J.A.
000086236 700__ $$0(orcid)0000-0002-8021-8709$$aCuartero, V.
000086236 700__ $$aCova, F.
000086236 700__ $$aAbrikosov, I.A.
000086236 700__ $$aOlovsson, W.
000086236 700__ $$aPopescu, C.
000086236 700__ $$aPascarelli, S.
000086236 700__ $$aGarbarino, G.
000086236 700__ $$aJönsson, H.J.M.
000086236 700__ $$aIrifune, T.
000086236 700__ $$aErrandonea, D.
000086236 773__ $$g9, 1 (2019), 8940 [9 pp.]$$pSci. rep.$$tScientific Reports$$x2045-2322
000086236 85641 $$uhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85067628529&doi=10.1038%2fs41598-019-45401-x&partnerID=40&md5=abf40f76f81b9996e2c2e716ff37478f$$zTexto completo de la revista
000086236 8564_ $$s1304363$$uhttps://zaguan.unizar.es/record/86236/files/texto_completo.pdf$$yVersión publicada
000086236 8564_ $$s112196$$uhttps://zaguan.unizar.es/record/86236/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000086236 909CO $$ooai:zaguan.unizar.es:86236$$particulos$$pdriver
000086236 951__ $$a2020-07-16-09:39:51
000086236 980__ $$aARTICLE