Photoemission of Ternary Sodium-Cesium-Potassium Alloys

被引:0
|
作者
Arkhestov, Ruslan [1 ]
Kegadueva, Zareta [1 ]
Karamurzov, Barasbi [1 ]
Alchagirov, Boris [1 ]
机构
[1] Kh M Berbekov Kabardino Balkarian State Univ, Nalchik 360004, Russia
来源
INTERNATIONAL MULTIDISCIPLINARY MICROSCOPY CONGRESS | 2014年 / 154卷
关键词
D O I
10.1007/978-3-319-04639-6_25
中图分类号
TH742 [显微镜];
学科分类号
摘要
The photoemission properties and the temperature dependences of the electron work function (EWF) of the ternary Na-K-Cs alloys have been studied by means of the Fawler photoelectric method in conditions of high vacuum and of thermodynamic equilibrium in temperature range from 290 to 420 K. The additions of potassium to the binary Na-Cs alloy have been shown to increase the spectral sensitivity and to shift the maxima to the side of greater by 40 nm wavelengths. In ternary alloys, depending on the cesium content, the sign of the surface activity changes for EWF and the location of the isolines phi(x) alters in respect to the cesium corner of the concentration triangle while sodium is being replaced with cesium.
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页码:185 / 188
页数:4
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