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首页> 外文期刊>Journal of Crystal Growth >Preparation of oriented CoO(0 0 1) films on MgO( 0 0 1) by sol-gel two-steps method
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Preparation of oriented CoO(0 0 1) films on MgO( 0 0 1) by sol-gel two-steps method

机译：溶胶-凝胶两步法在MgO（0 0 1）上制备取向CoO（0 0 1）薄膜

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摘要

Epitaxial films of CoO (0 0 1) on MgO (0 0 1) at relatively low temperatures from Co-acetylacetone precursor were prepared by sol-gel method. The rapid heat treatment (RHT―800℃) promotes the (oriented) growth of CoO (0 0 1) on MgO (0 0 1). FT-IR investigation of the dried gel shows the transformation of Co-diketonate to CoO when heated to 800℃. The microstructure of the prepared films was investigated by SEM and X-ray diffraction (XRD). XRD pattern shows the (oriented) growth of CoO (0 0 1) on MgO (0 0 1). The lattice mismatch of CoO (a = 0.426 nm) with MgO (a = 0.421 nm) is 1.2%. A further calculation of the microstress and strain occurred of the prepared films show that the strain in x and y direction are equal (-0.0114) and in Z direction (0.0112).
机译：通过溶胶-凝胶法在相对较低的温度下由Co-乙酰丙酮前驱体制备了CoO（0 0 1）在MgO（0 0 1）上的外延膜。快速热处理（RHT〜800℃）促进了CoO（0 0 1）在MgO（0 0 1）上的（定向）生长。干燥凝胶的FT-IR研究表明，加热至800℃时，二酮酮酸转化为CoO。通过SEM和X射线衍射（XRD）研究了制备的膜的微观结构。 XRD图谱显示了CoO（0 0 1）在MgO（0 0 1）上的（定向）生长。 CoO（a = 0.426 nm）与MgO（a = 0.421 nm）的晶格失配为1.2％。对制备的膜发生的微应力和应变的进一步计算表明，x和y方向的应变相等（-0.0114），Z方向的应变相等（0.0112）。

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