Hyperfine interactions in Pd foils during D/H electrochemical loading

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dc.contributor.authorSILVA, ERIC B. da
dc.contributor.authorCORREIA, JOAO G.
dc.contributor.authorZOGHBY, MICHEL
dc.contributor.authorGAHL, JOHN
dc.contributor.authorSCHELL, JULIANA
dc.contributor.authorMATOS, IZABELA T. de
dc.contributor.authorRIBEIRO JUNIOR, IBERE S.
dc.contributor.authorCARBONARI, ARTUR W.
dc.contributor.authorHUBLER, GRAHAM K.
dc.contributor.authorVIOLANTE, VITTORIO
dc.contributor.authorTHIOYE, MOUSTAPHA
dc.contributor.authorHE, JINGHAO
dc.contributor.editorTEMST, KRISTIAAN
dc.contributor.editorVANTOMME, ANDRE
dc.contributor.editorCOTTENIER, STEFAAN
dc.contributor.editorPEREIRA, LINO
dc.coverageInternacionalpt_BR
dc.creator.eventoINTERNATIONAL CONFERENCE ON HYPERFINE INTERACTIONS AND THEIR APPLICATIONSpt_BR
dc.date.accessioned2017-11-16T11:48:21Z
dc.date.available2017-11-16T11:48:21Z
dc.date.eventoJuly 3-8, 2016pt_BR
dc.description.abstractThe Fleischmann and Pons Effect (FPE) is the appearance of anomalous excess heat during electrolytic loading of hydrogen in metal. Although observed well above measurement uncertainties [1] this effect still remains unexplained. Unlike previous studies where hydrogen (H) was pre-loaded before Time Differential Perturbed Angular Correlations (TDPAC) [2,3] was performed, this present work probes, at the nanoscopic scale, palladium (Pd) samples during H and deuterium (D) loading in 0.1M LiOH or LiOD electrolyte. Radioactive 181Hf (181Ta) was implanted at 80 keV (HISKP-Bonn) and experiments were performed at the ISOLDE-CERN SSP laboratories after vacuum annealing to recover implantation defects. An almost “flat” unperturbed PAC – R(t) spectrum was observed, as expected for Hf/Ta atoms at cubic Pd sites with no remaining point defects in their vicinity. Upon D loading the “flat” unperturbed R(t) spectrum changes to a characteristic Gaussian-like EFG distribution, centered near zero EFG, due to the random distribution of D atoms inside the Pd lattice. With increasing D concentration, the central value of the distribution becomes nonzero, thus revealing that the Pd crystalline structure is relaxed from cubic, consistent with the phase diagram for Pd hydrides. The data also shows that, while being an impurity in the system under study, the Hf/Ta atoms do not trap nor significantly interfere with the H/D atoms in the Pd lattice that would bias the present studies. Thus, further experiments aimed at studying the FPE under external excitations are envisaged.pt_BR
dc.event.siglaHYPERFINEpt_BR
dc.identifier.citationSILVA, ERIC B. da; CORREIA, JOAO G.; ZOGHBY, MICHEL; GAHL, JOHN; SCHELL, JULIANA; MATOS, IZABELA T. de; RIBEIRO JUNIOR, IBERE S.; CARBONARI, ARTUR W.; HUBLER, GRAHAM K.; VIOLANTE, VITTORIO; THIOYE, MOUSTAPHA; HE, JINGHAO. Hyperfine interactions in Pd foils during D/H electrochemical loading. In: TEMST, KRISTIAAN (ed.); VANTOMME, ANDRE (ed.); COTTENIER, STEFAAN (ed.); PEREIRA, LINO (ed.). In: INTERNATIONAL CONFERENCE ON HYPERFINE INTERACTIONS AND THEIR APPLICATIONS, July 3-8, 2016, Leuven, Belgium. <b>Abstract...</b> Leuven, Belgium: Instituut voor Kern- en Stralingsfysica, 2016. Disponível em: http://repositorio.ipen.br/handle/123456789/28005.
dc.identifier.orcidhttps://orcid.org/0000-0002-4499-5949
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/28005
dc.localLeuven, Belgiumpt_BR
dc.local.eventoLeuven, Belgiumpt_BR
dc.publisherInstituut voor Kern- en Stralingsfysicapt_BR
dc.rightsopenAccesspt_BR
dc.titleHyperfine interactions in Pd foils during D/H electrochemical loadingpt_BR
dc.typeResumo de eventos científicospt_BR
dspace.entity.typePublication
ipen.autorIZABELA TELES DE MATOS
ipen.autorIBERE SOUZA RIBEIRO JUNIOR
ipen.autorARTUR WILSON CARBONARI
ipen.autorERIC BERNARDO DA SILVA
ipen.codigoautor10836
ipen.codigoautor10189
ipen.codigoautor1437
ipen.codigoautor14138
ipen.contributor.ipenauthorIZABELA TELES DE MATOS
ipen.contributor.ipenauthorIBERE SOUZA RIBEIRO JUNIOR
ipen.contributor.ipenauthorARTUR WILSON CARBONARI
ipen.contributor.ipenauthorERIC BERNARDO DA SILVA
ipen.date.recebimento17-11pt_BR
ipen.event.datapadronizada2016pt_BR
ipen.identifier.ipendoc23301pt_BR
ipen.notas.internasAbstractpt_BR
ipen.type.genreResumo
relation.isAuthorOfPublication4acd80c8-445a-4637-9695-cad4cd2045bf
relation.isAuthorOfPublicationa978a384-2cd4-4fe3-8a0e-454eca29efe1
relation.isAuthorOfPublication8f236231-e73c-4182-a596-d83e49cd0404
relation.isAuthorOfPublication9099026c-7cef-46bb-b30e-8bc1b6892d4b
relation.isAuthorOfPublication.latestForDiscovery9099026c-7cef-46bb-b30e-8bc1b6892d4b
sigepi.autor.atividadeSILVA, ERIC B. DA:14138:310:Spt_BR
sigepi.autor.atividadeMATOS, IZABELA T. DE:10836:310:Npt_BR
sigepi.autor.atividadeRIBEIRO JUNIOR, IBERE S.:10189:310:Npt_BR
sigepi.autor.atividadeCARBONARI, ARTUR W.:1437:310:Npt_BR
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