1. J. F. Scott, C. A. Araujo, H. Brett Meadows, L. D. McMillan and A. Shawabkeh, J. Appl. Phys.66, 1444 (1989).
2. R. Moazzami, Ph.D. Dissertation, University of California, 1991.
3. H. Shinriki, M. Nakata, Y. Nishioka and K. Mukai, Tech. Dig. Symp. on VLSI Techn., p. 25 (1989).
4. J. Yugami, T. Mine, S. Iijima, and A. Hiraiwa, Tech. Dig. Solid-State Devices and Mater. Symp. p. 173 (1988).
5. L. H. Parker and A. F. Tasch, Proc. IEEE77, 374 (1989).