Theoretical study on novel electronic properties in nanographite materials

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dc.creatorHarigaya, Kikuo
dc.creatorYamashiro, Atsushi
dc.creatorShimoi, Yukihiro
dc.creatorWakabayashi, Katsunori
dc.creatorKobayashi, Yousuke
dc.creatorKawatsu, Naoki
dc.creatorTakai, Kazuyuki
dc.creatorSato, Hirohiko
dc.creatorRavier, Jerome
dc.creatorEnoki, Toshiaki
dc.creatorEndo, Morinobu
dc.date2003-05-27
dc.date2003-09-26
dc.date.accessioned2026-07-07T02:51:33Z
dc.date.available2026-07-07T02:51:33Z
dc.descriptionAntiferromagnetism in stacked nanographite is investigated with using the Hubbard-type model. We find that the open shell electronic structure can be an origin of the decreasing magnetic moment with the decrease of the inter-graphene distance, as experiments on adsorption of molecules suggest. Next, possible charge-separated states are considered using the extended Hubbard model with nearest-neighbor interactions. The charge-polarized state could appear, when a static electric field is present in the graphene plane for example. Finally, superperiodic patterns with a long distance in a nanographene sheet observed by STM are discussed in terms of the interference of electronic wave functions with a static linear potential theoretically. In the analysis by the k-p model, the oscillation period decreases spatially in agreement with experiments.
dc.description8 pages; 6 figures; accepted for publication in J. Phys. Chem. Solids; related Web site: http://staff.aist.go.jp/k.harigaya/index_E.html
dc.identifierhttps://arxiv.org/abs/cond-mat/0305613
dc.identifierhttp://arxiv.org/abs/cond-mat/0305613
dc.identifierJ. Phys. Chem. Solids 65 (2004) 123-126
dc.identifierdoi:10.1016/j.jpcs.2003.10.005
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/21497
dc.subjectStrongly Correlated Electrons
dc.subjectMaterials Science
dc.subjectChemical Physics
dc.subjectQuantum Physics
dc.titleTheoretical study on novel electronic properties in nanographite materials
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