Raman studies of the Zn acceptor in GaP

Abstract
The Raman spectrum of the Zn acceptor in GaP is examined under applied magnetic fields and uniaxial stress. The relative intensity and Zeeman splitting of the prominent B-line are not consistent with previous conjectures that it is the transition between the acceptor ground states associated with the P3/2 and P1/2 valence-band maxima. An alternative interpretation of this feature based on the coupling of the acceptor bound states of the two bands by the acceptor impurity potential is suggested.