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    题名: Oxygen 1s x-ray-absorption near-edge structure of Zn-Ni ferrites : a comparison with the theoretical calculations
    作者: Pong, Way-faung;Su, M. H.;Tsai, M. H.;Hsieh, H. H.;Pieh, J. Y.;Chang, Y. K.;Kuo, K. C.;Tseng, P. K.;Lee, J. F.;Chung, S. C.;Chen, C. I.;Tsang, K. L.;Chen, C. T.
    贡献者: 淡江大學物理學系
    日期: 1996-12
    上传时间: 2013-07-09 15:23:11 (UTC+8)
    出版者: College Park: American Physical Society
    摘要: We present the electronic structure of ferrimagnetic ZnxNi1-xFe2O4 compounds obtained by a combination of O K-edge x-ray-absorption measurements and first-principles spin-unrestricted calculations using the pseudofunction method. The two distinct preedge features are found to vary systematically as a function of the Zn content. From both experimental and theoretical analyses, we find that substitution of Ni with Zn enhances localization of the 3d states of Fe on the octahedral sites, so that the O 2p–Fe 3d hybridized states can be resolved into two distinct twofold and threefold features.
    關聯: Physical Review B (Condensed Matter) 54(23), pp.16641-16645
    DOI: 10.1103/PhysRevB.54.16641
    显示于类别:[物理學系暨研究所] 期刊論文


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