Band structure of beta-HgS from Shubnikov-de Haas effect

The Shubnikov-de Haas oscillations were measured in zinc-blende Hg0.98TM0.0 2S (TM = Co, Mn, Fe) at temperatures ranging from 1.6 to 30 K, in magnetic fields up to 13 T. From standard harmonic analysis the values of the effect ive masses at the Fermi level versus electron concentration were determined . The analysis of this dependence within the frame of Kane model for narrow -band semiconductors yielded a low temperature value for energy gap E-0 = - 0.110 eV +/- 0.040 eV and momentum matrix element P = 7.1 x 10(-8) eV cm +/ - 0.2 x 10(-8) eV cm. (C) 1998 Elsevier Science B.V. All rights reserved.