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dc.contributor.authorSkripov, A. V.en
dc.contributor.authorIsnard, O.en
dc.contributor.authorMushnikov, N. V.en
dc.contributor.authorTerent'ev, P. B.en
dc.contributor.authorGaviko, V. S.en
dc.contributor.authorUdovic, T. J.en
dc.date.accessioned2022-05-12T08:25:59Z-
dc.date.available2022-05-12T08:25:59Z-
dc.date.issued2017-
dc.identifier.citationHydrogen Dynamics in the Hexagonal Ho2Fe17H4 and Y2Fe17H4.2: Inelastic and Quasielastic Neutron Scattering Studies / A. V. Skripov, O. Isnard, N. V. Mushnikov et al. // Journal of Alloys and Compounds. — 2017. — Vol. 720. — P. 277-283.en
dc.identifier.issn0925-8388-
dc.identifier.otherAll Open Access, Bronze3
dc.identifier.urihttp://elar.urfu.ru/handle/10995/111930-
dc.description.abstractThe vibrational spectra of hydrogen and the parameters of H jump motion in the hexagonal Th2Ni17-type compounds Ho2Fe17H4 and Y2Fe17H4.2 have been studied by means of inelastic and quasielastic neutron scattering. It is found that hydrogen atoms occupying interstitial Ho(Y)2Fe2 sites in both compounds participate in the fast localized jump motion over the hexagons formed by these tetrahedral sites. The temperature dependence of the H jump rate is well described by the Arrhenius law over wide T ranges (100–340 K for Ho2Fe17H4 and 140–360 K for Y2Fe17H4.2) with the activation energies of 54 (4) meV and 84 (7) meV, respectively. For Ho2Fe17H4, the localized hydrogen jump motion is found to be the fastest among all R2Fe17 hydrides studied so far. At room temperature, the H jump rate in Ho2Fe17H4 derived from our quasielastic neutron scattering data reaches 6.4 × 1011 s−1. © 2017 Elsevier B.V.en
dc.description.sponsorshipThis work was performed within the assignment of the Russian Federal Agency of Scientific Organizations (program "Spin" No. 012014633). The authors acknowledge support from the Ural Branch of the Russian Academy of Sciences under grant No. 15-9-2-9. AVS gratefully acknowledges financial support from the NIST Center for Neutron Research. This work utilized facilities supported in part by the National Science Foundation under Agreement No. DMR-0944772.en
dc.format.mimetypeapplication/pdfen
dc.language.isoenen
dc.publisherElsevier Ltden1
dc.publisherElsevier BVen
dc.rightsinfo:eu-repo/semantics/openAccessen
dc.sourceJ Alloys Compd2
dc.sourceJournal of Alloys and Compoundsen
dc.subjectDIFFUSIONen
dc.subjectINELASTIC NEUTRON SCATTERINGen
dc.subjectMETAL HYDRIDESen
dc.subjectACTIVATION ENERGYen
dc.subjectATOMSen
dc.subjectDIFFUSIONen
dc.subjectHYDRIDESen
dc.subjectHYDROGENen
dc.subjectINELASTIC NEUTRON SCATTERINGen
dc.subjectNEUTRON SCATTERINGen
dc.subjectTEMPERATURE DISTRIBUTIONen
dc.subjectARRHENIUS LAWen
dc.subjectHYDROGEN ATOMSen
dc.subjectHYDROGEN DYNAMICSen
dc.subjectJUMP RATEen
dc.subjectMETAL HYDRIDESen
dc.subjectQUASI ELASTIC NEUTRON SCATTERINGen
dc.subjectTEMPERATURE DEPENDENCEen
dc.subjectTETRAHEDRAL SITESen
dc.subjectIRON COMPOUNDSen
dc.titleHydrogen Dynamics in the Hexagonal Ho2Fe17H4 and Y2Fe17H4.2: Inelastic and Quasielastic Neutron Scattering Studiesen
dc.typeArticleen
dc.typeinfo:eu-repo/semantics/articleen
dc.typeinfo:eu-repo/semantics/acceptedVersionen
dc.identifier.doi10.1016/j.jallcom.2017.05.300-
dc.identifier.scopus85019754961-
local.contributor.employeeSkripov, A.V., Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, 620990, Russian Federation; Isnard, O., CNRS, Institut Néel, CNRS, BP 166X, Grenoble, F-38042, France, Université Grenoble Alpes, Institut Néel, Grenoble, F-38042, France; Mushnikov, N.V., Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, 620990, Russian Federation, Yeltsin Ural Federal University, Ekaterinburg, 620002, Russian Federation; Terent'ev, P.B., Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, 620990, Russian Federation, Yeltsin Ural Federal University, Ekaterinburg, 620002, Russian Federation; Gaviko, V.S., Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, 620990, Russian Federation, Yeltsin Ural Federal University, Ekaterinburg, 620002, Russian Federation; Udovic, T.J., NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899-6102, United Statesen
local.description.firstpage277-
local.description.lastpage283-
local.volume720-
dc.identifier.wos000426794200001-
local.contributor.departmentInstitute of Metal Physics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, 620990, Russian Federation; CNRS, Institut Néel, CNRS, BP 166X, Grenoble, F-38042, France; Université Grenoble Alpes, Institut Néel, Grenoble, F-38042, France; Yeltsin Ural Federal University, Ekaterinburg, 620002, Russian Federation; NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899-6102, United Statesen
local.identifier.pure1814880-
local.identifier.eid2-s2.0-85019754961-
local.identifier.wosWOS:000426794200001-
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