We consider Bloch electrons in the electromagnetic field and argue the
relation between the Berry phase and the quantized Hall conductivity in
three-dimension. The Berry phase we consider here is induced by the adiabatic
change of the time-dependent vector potential. The relation has been shown in
two-dimensional systems, and we generalize the relation in three-dimensional
systems.Comment: corrected some typos. Accepted for publication in J. Phys. Soc. Jp