Chemical reaction at the annealed Si/Yb interface
- 1 July 1983
- journal article
- Published by American Vacuum Society in Journal of Vacuum Science & Technology B
- Vol. 1 (3) , 530-532
- https://doi.org/10.1116/1.582593
Abstract
We present the first evidence of formation of mixed valent compounds at the Si(111)/Yb interface upon annealing. Two stable and uniform compositions were found, these being related to the known bulk silicides YbSi and YbSi2. The mixed valence behavior is seen in the presence of the strong 4f13 (Yb3+) signal and in the shift of the 4f14 (Yb2+) signal to the Fermi level.Keywords
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