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dc.contributor.authorAbou-Hamad, E
dc.contributor.authorGoze-Bac, C.
dc.contributor.authorNitze, F
dc.contributor.authorSchmid, M
dc.contributor.authorAznar, R
dc.contributor.authorMehring, M
dc.contributor.authorWågberg, T
dc.date.accessioned2015-05-21T07:10:15Z
dc.date.available2015-05-21T07:10:15Z
dc.date.issued2011-05-24
dc.identifier.citationElectronic properties of Cs-intercalated single-walled carbon nanotubes derived from nuclear magnetic resonance 2011, 13 (5):053045 New Journal of Physics
dc.identifier.issn1367-2630
dc.identifier.doi10.1088/1367-2630/13/5/053045
dc.identifier.urihttp://hdl.handle.net/10754/554373
dc.description.abstractWe report on the electronic properties of Cs-intercalated single-walled carbon nanotubes (SWNTs). A detailed analysis of the 13C and 133Cs nuclear magnetic resonance (NMR) spectra reveals an increased metallization of the pristine SWNTs under Cs intercalation. The 'metallization' of CsxC materials where x=0–0.144 is evidenced from the increased local electronic density of states (DOS) n(EF) at the Fermi level of the SWNTs as determined from spin–lattice relaxation measurements. In particular, there are two distinct electronic phases called α and β and the transition between these occurs around x=0.05. The electronic DOS at the Fermi level increases monotonically at low intercalation levels x<0.05 (α-phase), whereas it reaches a plateau in the range 0.05≤x≤0.143 at high intercalation levels (β-phase). The new β-phase is accompanied by a hybridization of Cs(6s) orbitals with C(sp2) orbitals of the SWNTs. In both phases, two types of metallic nanotubes are found with a low and a high local n(EF), corresponding to different local electronic band structures of the SWNTs.
dc.publisherIOP Publishing
dc.relation.urlhttp://stacks.iop.org/1367-2630/13/i=5/a=053045?key=crossref.08c8a1d853677f6620a61a972f1a1576
dc.rightsArchived with thanks to New Journal of Physics http://creativecommons.org/licenses/by/3.0/
dc.titleElectronic properties of Cs-intercalated single-walled carbon nanotubes derived from nuclear magnetic resonance
dc.typeArticle
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.identifier.journalNew Journal of Physics
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionnanoNMRI group, UMR5587, Université Montpellier II, Place E Bataillon, 34095 Montpellier Cedex 5, France
dc.contributor.institutionDepartment of Physics, Umeå University, 90187 Umeå, Sweden
dc.contributor.institutionPhysikalisches Institut, Universität Stuttgart, D-70569 Stuttgart, Germany
kaust.personAbou-Hamad, Edy
refterms.dateFOA2018-06-13T10:15:16Z


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