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    題名: Growth and structural studies of Fe3O4/MgO superlattices
    作者: 張經霖;Chang, C. L.;Chern, G.;Chean, Y. R.;Chen, C. L.
    貢獻者: 淡江大學物理學系
    關鍵詞: Oxide superlattice;Ferrimagnetic compounds;RHEED;X-ray diffraction;X-ray absorption spectroscopy
    日期: 2000-07-02
    上傳時間: 2009-12-31 10:45:11 (UTC+8)
    出版者: Elsevier
    摘要: A series of Fe3O4/MgO superlattices, with MgO fixed at ∼20 Å and Fe3O4 varied from 10 to 80 Å, are fabricated on MgO(001) and related substrates with an oxygen plasma assisted molecular beam epitaxy (MBE). The samples were analysed by in situ reflection high-energy electron diffraction (RHEED), ex situ X-ray diffraction (XRD), and X-ray absorption spectroscopy (XAS). It is observed that these oxide films have single crystalline quality along the same orientation as the substrates, even for Fe3O4 as thin as about one unit cell. Sharp interfaces between layers were obtained by appropriate arrangement of cations during the growth. The interfacial strain originated from the lattice misfit between the parent materials and substrate is accommodated by a tetragonal distortion of Fe3O4. This effect results in an extremely stable growth mode of these superlattices.
    關聯: Applied surface science 161(3-4), pp.448-451
    DOI: 10.1016/S0169-4332(00)00307-X
    顯示於類別:[物理學系暨研究所] 期刊論文

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