1. D. N. Goryachev, L. V. Belyakov, and O. M. Sreseli, Fiz. Tekh. Poluprovodn. 34, 1130 (2000) [Semiconductors 34, 1090 (2000)].
2. G. K. Moroz and A. V. Zherzdev, Fiz. Tekh. Poluprovodn. 28, 949 (1994) [Semiconductors 28, 550 (1994)].
3. F. F. Vol’kenshtein, Electron Processes on Semiconductor Surface at khemosorbtsii (Nauka, Moscow, 1987) [in Russian].
4. L. Boarino, C. Baratto, F. Geobaldo, et al., Mater. Sci. Eng. B 69–70, 210 (2000).
5. E. A. Konstantinova, L. A. Osminkina, K. S. Sharov, et al., Zh. Éksp. Teor. Fiz. 126, 857 (2004) [JETP 99, 741 (2004)].