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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/27809

    Title: Electronic structure of multiferroic BiFeO3 by resonant soft x-ray emission spectroscopy
    Authors: Higuchi, Tohru;Liu, Yi-Sheng;Yao, Peng;Glans, Per-Anders;Guo, Jinghua;張經霖;Chang, Chinglin;Wu, Ziyu;Sakamoto, Wataru;Itoh, Naoyuki;Shimura, Tetsuo;Yogo, Toshinobu;Hattori, Takeshi
    Contributors: 淡江大學物理學系
    Date: 2008-08
    Issue Date: 2010-08-10 09:44:56 (UTC+8)
    Publisher: College Park: American Physical Society
    Abstract: The electronic structure of multiferroic BiFeO3 has been studied using soft x-ray emission spectroscopy. The fluorescence spectra exhibit that the valence band is mainly composed of O 2p state hybridized with Fe 3d state. The band gap corresponding to the energy separation between the top of the O 2p valence band and the bottom of the Fe 3d conduction band is 1.3 eV. The soft x-ray Raman scattering reflects the features due to the charge-transfer transition from O 2p valence band to Fe 3d conduction band. These findings are similar to the result of electronic structure calculation by density-functional theory within the local spin-density approximation that included the effect of Coulomb repulsion between localized d states.
    Relation: Physical Review B (Condensed Matter and Materials Physics) 78(8), pp.085106(5pages)
    DOI: 10.1103/PhysRevB.78.085106
    Appears in Collections:[Graduate Institute & Department of Physics] Journal Article

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