000075950 001__ 75950
000075950 005__ 20231127095529.0
000075950 0247_ $$2doi$$a10.1038/s41467-018-06966-9
000075950 0248_ $$2sideral$$a109017
000075950 037__ $$aART-2018-109017
000075950 041__ $$aeng
000075950 100__ $$aSans, J.A.
000075950 245__ $$aStability and nature of the volume collapse of e-Fe2O3 under extreme conditions
000075950 260__ $$c2018
000075950 5060_ $$aAccess copy available to the general public$$fUnrestricted
000075950 5203_ $$aIron oxides are among the major constituents of the deep Earth''s interior. Among them, the epsilon phase of Fe2O3 is one of the less studied polymorphs and there is a lack of information about its structural, electronic and magnetic transformations at extreme conditions. Here we report the precise determination of its equation of state and a deep analysis of the evolution of the polyhedral units under compression, thanks to the agreement between our experiments and ab-initio simulations. Our results indicate that this material, with remarkable magnetic properties, is stable at pressures up to 27¿GPa. Above 27¿GPa, a volume collapse has been observed and ascribed to a change of the local environment of the tetrahedrally coordinated iron towards an octahedral coordination, finding evidence for a different iron oxide polymorph.
000075950 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/FIS2017-83295-P$$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/MAT2016-75586-C4-3-P$$9info:eu-repo/grantAgreement/ES/MINECO/SEV-2015-0496
000075950 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000075950 590__ $$a11.878$$b2018
000075950 591__ $$aMULTIDISCIPLINARY SCIENCES$$b5 / 69 = 0.072$$c2018$$dQ1$$eT1
000075950 592__ $$a5.992$$b2018
000075950 593__ $$aBiochemistry, Genetics and Molecular Biology (miscellaneous)$$c2018$$dQ1
000075950 593__ $$aPhysics and Astronomy (miscellaneous)$$c2018$$dQ1
000075950 593__ $$aChemistry (miscellaneous)$$c2018$$dQ1
000075950 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000075950 700__ $$aMonteseguro, V.
000075950 700__ $$aGarbarino, G.
000075950 700__ $$aGich, M.
000075950 700__ $$aCerantola, V.
000075950 700__ $$0(orcid)0000-0002-8021-8709$$aCuartero, V.
000075950 700__ $$aMonte, M.
000075950 700__ $$aIrifune, T.
000075950 700__ $$aMuñoz, A.
000075950 700__ $$aPopescu, C.
000075950 773__ $$g9, 1 (2018), 4554 [11 pp]$$tNature communications$$x2041-1723
000075950 8564_ $$s533570$$uhttps://zaguan.unizar.es/record/75950/files/texto_completo.pdf$$yVersión publicada
000075950 8564_ $$s60854$$uhttps://zaguan.unizar.es/record/75950/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000075950 909CO $$ooai:zaguan.unizar.es:75950$$particulos$$pdriver
000075950 951__ $$a2023-11-27-09:46:22
000075950 980__ $$aARTICLE