Self-consistent calculations are made of the electrostatic Hall potent
ial (EHP), local chemical potential (LCP), and current density in a 10
0-nm-wide wire containing two-dimensional electrons in a perpendicular
magnetic field B when either one or two subbands are occupied. The co
rresponding Hall resistances, R(EHP) and R(LCP), are also calculated.
The former is nearly linear in B in spite of subband depopulation. The
latter is quantized but the quantization steps are rounded because of
overlap of the forward and backward wave functions.