High-magnetic-field-induced large blueshift and depopulation of a quasi-one-dimensional electron-hole system in $p$-type modulation-doped semiconductor quantum wires

Magneto-optical effects in $p$-type modulation-doped semiconductor quantum wires are investigated up to 40 T. Heavy doping of holes above the light-hole-like state at 0 T enables us to observe both the heavy- and light-hole-like states in the photoluminescence. A large blueshift in the photoluminescence peak and depopulation of the light-hole-like states by magnetic fields are observed. A realistic self-consistent Hartree calculation reveals that the observed large blueshift is due to the indirect-gap formation induced by the impurity ions in the barrier.