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首页> 外文期刊>Physica status solidi, B. Basic research >Molecular beam epitaxy of MgxZn1-xO layers without wurzite-rocksalt phase mixing from x=0 to 1 as an effect of ZnO buffer layer
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Molecular beam epitaxy of MgxZn1-xO layers without wurzite-rocksalt phase mixing from x=0 to 1 as an effect of ZnO buffer layer

机译：ZnO缓冲层的作用，镁x1-xO层的分子束外延从x = 0到1不混合纤锌矿-岩盐混合

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MgchiZn1-chiO (0 less than or equal to chi less than or equal to 1) layers without wurzite-rocksalt phase mixing have been successfully grown by MBE on a-plane sapphire substrates with ZnO buffer layers. The layers of chi < 0.5 take wurzite (0001) structure eliminating the problem of wurzite-rocksalt phase mixing reported previously between chi = 0.35 and 0,45, while those of chi > 0.5 rocksalt (001) with wurzite (0001) structure only at the initial stage of the growth (<25 nm). The rocksalt (001) rather than (111) which has been generally seen on sapphire without ZnO buffer layers can be explained by the model showing successive transition from wurzite (0001) to rocksalt (001) with the tensile and compressive deformation of the lattices along a- and b-axes, respectively. The band gap energy of MgchiZn1-chiO has been continuously tuned without the problem of unstable phase mixing. (C) 2004 WILEY-VCH Vertag GmbH & Co. KGaA. Weinheim. [References: 6]
机译：MBE已成功地在具有ZnO缓冲层的a面蓝宝石衬底上生长了不含纤锌矿-岩盐相混合的MgchiZn1-chiO（0小于等于chi小于等于1）层。 chi <0.5的层采用纤锌矿（0001）结构，消除了先前报道的chi = 0.35和0.45之间的纤锌矿-岩盐相混合问题，而chi> 0.5岩盐（001）的纤锌矿（0001）结构仅在生长的初始阶段（<25 nm）。岩石盐（001）而不是通常在没有ZnO缓冲层的蓝宝石上看到的（111）可以用以下模型解释：该模型显示了从纤锌矿（0001）到岩石盐（001）的连续过渡以及晶格的拉伸和压缩变形a轴和b轴。 MgchiZn1-chiO的带隙能量已经连续调谐，没有不稳定的相混合问题。 （C）2004 WILEY-VCH Vertag GmbH＆Co. KGaA。温海姆。 [参考：6]

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