2026-03-08T08:12:22Z https://hiroshima.repo.nii.ac.jp/oai

oai:hiroshima.repo.nii.ac.jp:02007511 2025-02-21T10:07:01Z 1730444907710

Electronic structures of HOPG and stage-2 IBr-GIC studied by angle resolved photoemission Negishi, H. Negishi H. Negishi, Saiko Negishi Saiko Shimada, Kenya Shimada Kenya Narimura, T. Narimura T. Hagashiguchi, Mitsuharu Hagashiguchi Mitsuharu Namatame, Hirofumi Namatame Hirofumi Taniguchi, Masaki Taniguchi Masaki Kobayashi, K. Kobayashi K. Sugihara, K. Sugihara K. Oshima, H. Oshima H. open access Copyright (c) 2006 Elsevier Ltd C Photoelectron spectroscopy D Electronic structure 420 Angle resolved photoemission spectra (ARPES) of host HOPG and IBr-GIC have been measured at 16 K using hν=122 eV. Both HOPG and IBr-GIC show clear dispersions of upper π band and σ bands derived from C 2s and 2p electrons. The intensity plot of ARPES spectra shows the overlap of the dispersion curves along the ΓM and ΓK directions due to the in-plane mosaic structure of HOPG. Based on the Johnson-Dresselhaus band model, the dispersion curves of the π bands of HOPG and IBr-GIC are reproduced over the full Brillouin zone. We discuss the important role of the interactions between C-C atoms in the neighboring layers in the stage-2 structure. Elsevier 2006-05 eng journal article AO https://hiroshima.repo.nii.ac.jp/records/2007511 10.1016/j.jpcs.2006.01.037 http://dx.doi.org/10.1016/j.jpcs.2006.01.037 0022-3697 AA00704949 Journal of Physics and Chemistry of Solids Journal of Physics and Chemistry of Solids 67 5-6 1145 1145 1148 https://hiroshima.repo.nii.ac.jp/record/2007511/files/JPCS_67_1145.pdf 358.7 KB