1. Shen, S., Zhou, W., Pamulapati, J., and Ren, F., Appl. Phys. Lett., 1999, vol. 74, p. 1430.
2. Suzuki, K., Okudaira, S., Sakudo, N., and Kanomata, J., Jpn. J. Appl. Phys., 1977, vol. 16, p. 1979.
3. Grigor’ev, A.T., in “Tezisy dokladov Vserossiiskoi nauchno-tekhnicheskoi konferentsii” Mikro-i nanoelektronika-2001| (Proc. All-Russia Sci.-Tech. Conf. “Micro-and Nanoelectronics-2001”), Zvenigorod, 2001, p. 1.
4. Kondo, N. and Nanishi, Y., Jpn. J. Appl. Phys., 1989, vol. 28, p. 27.
5. Pincik, E., Jergel, M., Kucera, M., et al., Appl. Surf. Sci., 2000, vol. 166, p. 72.