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    题名: Charge-Orbital Ordering and Verwey Transition in Magnetite Measured by Resonant Soft X-Ray Scattering
    作者: Huang, D. J.;Lin, H.-J.;Okamoto, J.;Chao, K. S.;Jeng, H.-T.;Guo, G. Y.;Hsu, C.-H.;Huang, C.-M.;Ling, D. C.;Wu, W. B.;Yang, C. S.;Chen, C. T.
    贡献者: 淡江大學物理學系
    关键词: Charge-orbital ordering;Thermal hysteresis;Undistorted cubic phase;Verwey transition;Electron transitions;Fermi level;Hysteresis;Lattice constants;X ray scattering;Magnetite
    日期: 2006-03
    上传时间: 2013-07-09 15:22:24 (UTC+8)
    出版者: College Park: American Physical Society
    摘要: We report experimental evidence for the charge-orbital ordering in magnetite below the Verwey transition temperature TV. Measurements of O K-edge resonant x-ray scattering on magnetite reveal that the O 2p states in the vicinity of the Fermi level exhibit a charge-orbital ordering along the c axis with a spatial periodicity of the doubled lattice parameter of the undistorted cubic phase. Such a charge-orbital ordering vanishes abruptly above TV and exhibits a thermal hysteresis, correlating closely with the Verwey transition in magnetite.
    關聯: Physical Review Letters 96(9), 096401(4 pages)
    DOI: 10.1103/PhysRevLett.96.096401
    显示于类别:[物理學系暨研究所] 期刊論文


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