1. S. L. Hsia, T. Y. Tan, P. Smith, and G. E. McGuire, J. Appl. Phys. 70, 7579 (1991).JAPIAU0021-8979
2. S. Hatzikonstantinidou, H.-E. Nilsson, C. Fröjdh, and C. S. Petersson, in 16th Nordic Semiconductor Meeting, Laugarvatn Island, 1994 (unpublished), p. 226.
3. A. Schüppen, M. Marso, and H. Lüth, IEEE Trans. Electron Devices 41, 751 (1994).IETDAI0018-9383
4. E. Rosencher, P. A. Badoz, J. C. Pfister, F. Arnaud d’Avitaya, G. Vincent, and S. Delage, Appl. Phys. Lett. 49, 271 (1986).APPLAB0003-6951
5. S. Mantl, Mater. Sci. Rep. 8, 95 (1992).MSREEL0920-2307