Piezospectroscopy of the p₃/₂ and Fano series of singly ionized zinc in germanium

The absorption spectrum of singly ionized zinc in Ge has been studied using Fourier spectroscopy. Improved experimental conditions give more details for the p3/2 series than previously. Quantitative piezospectroscopy has been performed with compression along <111> and <100>. It is deduced that the final states of the compound C line include 1Gamma7-, 3Gamma8-, 3Gamma8+, and 4Gamma8+. More reliable deformation potential constants of some energy states have been obtained. Fano resonances associated with bound-hole states have been studied with and without applied uniaxial compression. The piezospectroscopic behavior of these is compared with that of the parent p3/2 series.<p></p>