FINE STRUCTURE MEASUREMENTS IN ENERGY ANGULAR DISTRIBUTION OF SECONDARY ELECTRONS FROM A (110) FACE OF COPPER

被引：22
作者：
APPELT, G
机构：
[1] Physikalisch-Technisches Institut, Deutschen Akademie Der Wissenschaften
来源：
PHYSICA STATUS SOLIDI | 1968年 / 27卷 / 02期
关键词：
D O I：
10.1002/pssb.19680270223
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The energy angular distribution of secondary electrons from a (110) face of copper in the (010) azimuth is measured by means of a dynamical method. The plots exhibit numerous fine structure maxima. It can be shown that the maxima corresponding to all theoretically possible directions of reciprocal lattice vectors up to the 46th order may be found in every measurement; taking the whole results, maxima corresponding to directions of reciprocal lattice vectors up to the 148th order may be detected continuously. The correlation of the maxima to the crystal structure yields experimental values of the refractive index which depends on the energy of the secondary but is independent of the energy of the primary electrons. By means of this refractive index it is possible to determine the energy band of excited states above the vacuum level in the (010) direction of the wave vector, except an integration constant. Copyright © 1968 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
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页码：657 / &
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