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    題名: Electronic structure of multiferroic BiFeO3 by resonant soft x-ray emission spectroscopy
    作者: 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
    貢獻者: 淡江大學物理學系
    日期: 2008-08
    上傳時間: 2010-08-10 09:44:56 (UTC+8)
    出版者: College Park: American Physical Society
    摘要: 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.
    關聯: Physical Review B (Condensed Matter and Materials Physics) 78(8), pp.085106(5pages)
    DOI: 10.1103/PhysRevB.78.085106
    顯示於類別:[物理學系暨研究所] 期刊論文

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