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Electronic properties of boron-doped multiwall carbon nanotubes studied by ESR and static magnetization

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dc.contributor.author Likodimos, V en
dc.contributor.author Glenis, S en
dc.contributor.author Lin, CL en
dc.date.accessioned 2014-03-01T01:22:17Z
dc.date.available 2014-03-01T01:22:17Z
dc.date.issued 2005 en
dc.identifier.issn 1098-0121 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/16513
dc.subject.classification Physics, Condensed Matter en
dc.subject.other SPIN-RESONANCE en
dc.subject.other FERROMAGNETIC-RESONANCE en
dc.subject.other GRAPHITE en
dc.subject.other SUSCEPTIBILITY en
dc.subject.other DIAMAGNETISM en
dc.subject.other ANISOTROPY en
dc.subject.other BEHAVIOR en
dc.title Electronic properties of boron-doped multiwall carbon nanotubes studied by ESR and static magnetization en
heal.type journalArticle en
heal.identifier.primary 10.1103/PhysRevB.72.045436 en
heal.identifier.secondary http://dx.doi.org/10.1103/PhysRevB.72.045436 en
heal.identifier.secondary 045436 en
heal.language English en
heal.publicationDate 2005 en
heal.abstract The electronic properties of boron-doped multiwall carbon nanotubes (MWNTs) have been studied using static magnetization and electron spin resonance. A relatively strong ferromagnetic signal has been identified in the dc magnetization response that shows the occurrence of ferromagnetism, coexisting with the orbital and spin magnetism of the conduction electrons. The small diamagnetic susceptibility and the weak temperature variation of the g factor, which is observed in the narrow conduction-electron spin resonance (CESR), indicate a Fermi level shift of ∼0.2eV, according to the quasi-two-dimensional graphite band model. The temperature dependence of the spin susceptibility reveals considerable enhancement compared to undoped MWNTs and the presence of thermally activated behavior, complying with an increased density of states and the formation of localized impurity states close to the Fermi level. Line-shape analysis of the CESR spectra in terms of two separate spin systems implies enhanced doping inhomogeneity. © 2005 The American Physical Society. en
heal.publisher AMERICAN PHYSICAL SOC en
heal.journalName Physical Review B - Condensed Matter and Materials Physics en
dc.identifier.doi 10.1103/PhysRevB.72.045436 en
dc.identifier.isi ISI:000230890300175 en
dc.identifier.volume 72 en
dc.identifier.issue 4 en


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