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【求助】一名词解释strained single crystal
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strained single crystal是翻译成应变单晶吗 什么是应变单晶啊 谢谢各位 [ Last edited by ymz on 2008-9-18 at 20:36 ] |
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dlwang
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建议题目可以改成“【求助】名词解释：strained single cystal” 可翻译为应变单晶。 由于单晶生长工艺过程中，单晶生长层和衬底会产生晶格匹配误差，从而导致应变。 可参考一篇论文【点击下载】 Strained single-crystal Al2O3 grown layer-by-layer on Nb (110) thin films Paul B. Welander, James N. Eckstein (Submitted on 2 Apr 2007) Abstract We report on the layer-by-layer growth of single-crystal Al2O3 thin-films on Nb (110). Single-crystal Nb films are first prepared on A-plane sapphire, followed by the evaporation of Al in an O2 background. The first stages of Al2O3 growth are layer-by-layer with hexagonal symmetry. Electron and x-ray diffraction measurements indicate the Al2O3 initially grows clamped to the Nb lattice with a tensile strain near 10%. This strain relaxes with further deposition, and beyond about 5 nm we observe the onset of island growth. Despite the asymmetric misfit between the Al2O3 film and the Nb under-layer, the observed strain is surprisingly isotropic. [ Last edited by dlwang on 2008-9-18 at 12:21 ] |
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