由于界面之间的扩散,很难取得在Si基片上BST薄膜的外延.在这种异质结之间,稳定的缓冲层起着良好的阻挡作用以及结构上的延伸功能.综述了用于外延BST薄膜的缓冲层材料的意义和要求,及国内外通过缓冲层来控制界面以及薄膜的外延取向而获得高质量薄膜的最新研究动态,展望了今后用于外延BST薄膜的缓冲层材料发展的趋势.
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