BEHAVIOR OF INTERSTITIAL IMPURITIES ON THE SURFACE OF YTTRIUM DURING SOLID-STATE ELECTROTRANSPORT - AUGER STUDIES

被引:5
作者
IONOV, AM [1 ]
VOLKOV, VT [1 ]
NIKIFOROVA, TV [1 ]
机构
[1] RUSSIAN ACAD SCI,INST MICROELECTR TECHNOL & HIGH PUR MAT,CHERNOGOLOVKA 142432,RUSSIA
关键词
INTERSTITIAL IMPURITIES; YTTRIUM; SOLID STATE ELECTROTRANSPORT; AUGER STUDIES;
D O I
10.1016/0925-8388(94)01454-X
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Investigations of electromigration of interstitial impurities O, C and N on the yttrium surface during solid state electrotransport in ultrahigh vacuum have been carried out by the method of Auger electron spectroscopy. It was shown that the behaviour of impurities on a surface correlated with that in the bulk during the electrotransport and a considerable segregation of O and C was taking place on the surface at reduced temperature. The analysis of possible mechanisms of the segregation has revealed non-equilibrium segregation as the most probable reason for the segregation. The parameters determining the segregation have been estimated.
引用
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页码:91 / 96
页数:6
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