【摘 要】
：
A CeO2 film with a thickness of about 80nm was deposited by a mass-analysed low-energy dual ion beam deposition technique on an Si(111) substrate. Reflection hi
【机 构】
：
Laboratory of Semiconductor Materials Science“,”National Laboratory for Superlattices and Microstruc
论文部分内容阅读
A CeO2 film with a thickness of about 80nm was deposited by a mass-analysed low-energy dual ion beam deposition technique on an Si(111) substrate. Reflection high-energy electron diffraction and x-ray diffraction measurements showed that the film is a single crystal. The tetravalent state of Ce in the film was confirmed by xray photoelectron spectroscopy measurements, indicating that stoichiometric CeO2 was formed. Violet/blue light emission (379.5 nm) was observed at room temperature, which may be tentatively explained by charge transitions from the 4f band to the valence band of CeO2.
其他文献
现如今,微博作为一种新兴起的媒体传介,以其“即时、简洁、便捷”的特性,受到了人们的极大关注,特别是受到了思维活跃、接受力强的大学生群体的追捧。运用微博开展大学生思想
“子母树”,是榆林老百姓对一种在沙漠中扎根固沙防风的柳树的“爱称”.这种柳树长到两三米的高度,就被砍去上端,从砍断处长出一丛“子枝”来.经过多年长了砍,砍了长,“子母
电视包装设计中,三维动画技术加速了电视频道包装行业的整体发展,能够为创作者提供尽情发挥想象的空间,加快了电视频道包装行业的变革,使观众的视觉和听觉得到前所未有的震撼
When focusing YAG laser pulses at 266nm into a heat-pipe oven containing PbI2 molecules vapor, four red line emissions at 626.0, 619.8, 613.7 and 621.8nm are ob
广播文艺运用特殊的技术手段,除造型艺术和表演艺术的形体动作以外,其他艺术都能纳入自己的领域,包括表演艺术的声音部分,形成自己的独有特征——听觉艺术。一、广播艺术广播
燨n the assumption that Onnes equations meet the requirements of the relativistic covariance, virial coefficients as functions of temperature are derived by usi
杂交水稻的繁殖和制种,成败关键之一在于花期相遇。保证花期相遇的措施,除了确定安全齐穗期,并根据时差、叶差和温差妥善安排父母本的播期以外,还需要在杂交水稻的生育期间
The structural and magnetic properties of the Nd2 Co17-x Mnx (x ≤ 14) compounds have been investigated bymeans of x-ray diffraction and magnetization measureme
A model considering gas outflows due to supeova explosions is developed for the star formation and chemical enrichment for the globular clusters (GCs) in the Mi
One mechanism by which laminar flow becomes turbulence is through the instability of vortex interaction. The nonlinear evolution of the interactions between the