SHALLOW-ACCEPTOR SPECTRAL-LINE FINE-STRUCTURE IN GERMANIUM

A controlled-accuracy, high-resolution energy spectrum of the 4X4 Kohn -Luttinger Hamiltonian with a screened Coulomb impurity potential has been obtained. The calculated and measured spectra were adjusted using selected line positions. An identification of the boron spectrum reve als a complex structure for most of the lines. The identification yiel ds the splittings in the multiplets and chemical shifts of the odd-par ity excited states. An estimated splitting in the C triplet of 53 mueV is in fair agreement with the reported separation for Ge(B), Ge(Al), and Ge(In). New data on the spectroscopic values of the ground-state b inding energies for nine experimentally studied acceptors are presente d.