Effects of oxygen atmosphere on surface properties of ScO/W(100) system as Schottky emitter at high temperature
Effects of oxygen atmosphere on surface properties of ScO/W(100) system as Schottky emitter at high temperature
复制标题
氧气气氛对肖特基发射极ScO/W(100)体系高温表面性能的影响
DOI：
10.1002/sia.2415
复制
发表时间：
2006
影响因子：
1.7
通讯作者：
Y. Takai
中科院分区：
文献类型：
--
作者：
Y. Nakanishi;T. Nagatomi;Y. Takai
The dependence of properties of the ScO/W(100) system on the partial pressure of oxygen was investigated by means of Auger electron spectroscopy, low‐energy electron diffraction and work function measurement. The (1 × 1)‐ScO/W(100) surface having a low work function, which was prepared by heating at 1700 K under ultrahigh vacuum (UHV) conditions, hardly showed any changes in surface properties at 1500 K, the operating temperature of the ScO/W(100) emitter, in a UHV of ∼5 × 10−10 Torr. In contrast, the (1 × 1) ScO/W(100) surface was changed to the (2 × 1)‐(1 × 2) ScO/W(100) surface having a high work function by heating at 1500 K in an oxygen atmosphere of even 5 × 10−9 Torr. The present results revealed that the partial pressure of oxygen around the ScO/W(100) tip is one of the most important factors for determining the optimum preparation and operating conditions of the ScO/W(100) emitter. Copyright © 2006 John Wiley & Sons, Ltd.
影响因子：
1.5
作者：
S. Iida;Y. Nakanishi;T. Nagatomi;Y. Takai
通讯作者：
S. Iida;Y. Nakanishi;T. Nagatomi;Y. Takai
通过功函数测量对多种短周期 BN d 掺杂硅进行溅射深度分析
DOI：
--
发表时间：
2005
期刊：
Japanese Journal of Applied Physics Vol.44 No.8
影响因子：
--
作者：
Y.Mizuhara;T.Bungo;T.Nagatomi;Y.Takai
通讯作者：
Y.Takai