Electron Spin Resonance Of Nd3+ And Gd3+ In D-band Intermetallic Compounds

dc.creatorBarberis G.E.
dc.creatorDavidov D.
dc.creatorDonoso J.P.
dc.creatorRettori C.
dc.creatorSuassuna J.F.
dc.creatorDokter H.D.
dc.date1979
dc.date2015-06-30T12:53:58Z
dc.date2015-11-26T14:35:13Z
dc.date2015-06-30T12:53:58Z
dc.date2015-11-26T14:35:13Z
dc.date.accessioned2018-03-28T21:38:37Z
dc.date.available2018-03-28T21:38:37Z
dc.identifier
dc.identifierPhysical Review B. , v. 19, n. 11, p. 5495 - 5506, 1979.
dc.identifier1631829
dc.identifier10.1103/PhysRevB.19.5495
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-0642377179&partnerID=40&md5=ac9de494127de646bc36769d4f775b81
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/97790
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/97790
dc.identifier2-s2.0-0642377179
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1248311
dc.descriptionWe report on the ESR of the rare-earth ions Nd3+, Gd3+, Er3+, and Yb3+ on powdered samples of various intermetallic compounds of AB2 cubic structure where B is a transition-metal ion belonging to the group VIII of the Periodic Table, and A is a nonmagnetic ion (La, Ce, Y). The resonance of the Nd3+ in these compounds originates within a Γ6 crystal-field ground level and exhibits resolved hyperfine satellites for the Nd143 and Nd145 isotopes. The Gd3+ spectra show a single isotropic line. Using our data for Gd3+ and Nd3+ together with results previously published for the AB2 cubic compounds, we were able to show a correlation between the observed g shifts and the position of the B ion in the Periodic Table. This variation is explained qualitatively using a simple multiband model, as well as band-structure arguments. The hyperfine constants for the Nd143 and Nd145 isotopes were found smaller in magnitude with respect to the values in insulators; this effect is attributed to s-electron self-polarization due to the Nd localized-moment-s-electron exchange coupling. The ESR linewidths of LaIr2: Nd and LaRh2: Nd exhibit an exponential thermal dependence at high temperatures which is attributed to the presence of a Γ8 excited level at Δ=90±20 K. © 1979 The American Physical Society.
dc.description19
dc.description11
dc.description5495
dc.description5506
dc.languageen
dc.publisher
dc.relationPhysical Review B
dc.rightsaberto
dc.sourceScopus
dc.titleElectron Spin Resonance Of Nd3+ And Gd3+ In D-band Intermetallic Compounds
dc.typeArtículos de revistas


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