1. A. I. Bennett and R. L. Longini, Phys. Rev.116, 53 (1959); S. N. Dermatis and J. W. Faust, IEEE Trans. Comm. Electronics65, 194 (1963); S. O’Hara and A. I. Bennett, J. Appl. Phys.35, 686 (1964); and D. L. Barrett, E. H. Meyers, D. R. Hamilton and A. I. Bennett, J. Electrochem. Soc.: Solid State Science118, 952 (1971).
2. G. K. Gaule and J. R. Pastore,Metallurgy of Elemental and Compound Semiconductors, Ed. by R. O. Grubel (Interscience Publishers, New York, 1961) p. 201.
3. S. V. Tsivinskii and A. V. Stepanov, Soviet Physics-Solid State7, 148 (1965).
4. S. V. Tsivinskii, Yu. I. Koptev and A. V. Stepanov, Soviet Physics-Solid State8, 449 (1966).
5. J. C. Boatman and P. C. Goundry, Electrochem. Tech.5, 98 (1967).