Electronic Properties of Topological Materials: Optical Excitations in Moebius Conjugated Polymers

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dc.creatorHarigaya, Kikuo
dc.date2004-12-13
dc.date.accessioned2026-07-07T03:02:39Z
dc.date.available2026-07-07T03:02:39Z
dc.descriptionElectronic structures and optical excitations in Moebius conjugated polymers are studied theoretically. Periodic and Moebius boundary conditions are applied to the tight binding model of poly(para-phenylene), taking exciton effects into account. We discuss that oligomers with a few structural units are more effective than polymers for observations of effects of discrete wave numbers that are shifted by the change in boundary condition. Next, calculations of optical absorption spectra are reported. Certain components of optical absorption for an electric field perpendicular to the polymer axis mix with absorption spectra for an electric field parallel to the polymer axis. Therefore, the polarization dependences of an electric field of light enable us to detect whether conjugated polymers have the Moebius boundary.
dc.description10 pages, 6 figures, to be published in J. Phys. Soc. Jpn., Vol. 74 No. 2 (February, 2005), Letter section
dc.identifierhttps://arxiv.org/abs/cond-mat/0412309
dc.identifierhttp://arxiv.org/abs/cond-mat/0412309
dc.identifierJ. Phys. Soc. Jpn., Vol.74 No.2, p.523-526 (2005)
dc.identifierdoi:10.1143/JPSJ.74.523
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/25468
dc.subjectMaterials Science
dc.subjectStrongly Correlated Electrons
dc.subjectChemical Physics
dc.subjectQuantum Physics
dc.titleElectronic Properties of Topological Materials: Optical Excitations in Moebius Conjugated Polymers
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