2m 0     T2F3/2dc
 C 2'      f    exp(c)

            S+Y     /koT, C12 dc    f (-Y)nl     Co   ide1

         f(+'y)    ,rk0   ex p-(d +          -/"___ ex.(1)


                           e'poc)    (A-B')1/2  /koT      (£I



                                                              (2.18)



           (A+B') /2f2(+Y) f/k°T  T223/2exp(-c)dc +


           (A-B')1/2f2(-Y)n1 f 0   T 2 2 13/2exp(-I )dc1 /koT 1 H2co              E 3/2d c F f(+ )  f /koT    C d c
                  e x, epT-)  _B 1 )3/2-exp(c) V            o           L(A+' 032
           f (-Y)Tql  o 001     l    .1(2                        19
           (A-B')3/2 i/     e x pT Fl) y


where c1   c - A/3ko0T, C,=  A/3, q,   exp(-A/3ko0T) and A and are defined in Figure 2.1.
         In this case because equations (2.11) through (2.13) were
expressed in terms of partial Fermi-Dirac integrals and equations (2.6), (2.9') and (2.10) were expressed in terms of complete Fermi-Dirac integrals, the dependence on T does not cancel out. Thus the nonparabolicity of the light-hole band introduces a dependence on the scattering relaxation time. The scattering relaxation time is discussed in Chapter III.