On the thermoelectric power in gapless semiconductors

F. Stern, J. Appl. Phys.,47, 5382, 1976. R. W. Dixon, Bell Syst. Tech. Journal,55, 973, 1976. W. Zawadzki, 11th Int. Conf. Phys. of Semicond.,1, p. 87, Elsevier Publishing Company, Netherlands, 1972. I. M. Tsidilkovski, Band Structure of Semiconductors, Pergamon Press, Oxford, 1982, p. 313 and the references cited therein. W. Zawadzki, Adv. Phys.,23, 435, 1974 and the references cited therein. S. P. Zelenin, A. S. Kondratev and A. I. Kuchma, Sov. Phys. Semicond.,16, 355, 1982 and the references cited therein. K. P. Ghatak and M. Mondal, Phys. Stat. Sol. (b),135, 819, 1986. V. A. Yakovlev, Sov. Phys. Semicond.,13, 692, 1979. B. I. Halperin and T. M. Rice, Rev. Mod. Phys.,40, 755, 1968. A. N. Chakravarti, K. P. Ghatak, G. B. Rao and K. K. Ghosh, Phys. Stat. Sol. (b),112, 75, 1982. M. Mondal and K. P. Ghatak, Phys. Stat. Sol. (b),122, K93, 1984. M. Abramovitz and I. A. Stegun, Handbook of Mathematical Functions, Washington, 1964. J. S. Blakemore Semiconductor Statistics, Pergamon Press, London, 1962. M. Neuberger, Hdb. Electronic Materials,2, IFI/Plenum Data Corporation, New York, 1971.