Full text loading...
The near-gap energy level diagram and transition probabilities at the point, and the crystal structure of (b) chalcopyrite and (c) CuAu-like , (d) kesterite, and (e) stannite (sky-blue stands for Cu, purple for Ga, cyan for Cd and yellow for Se). Only the transitions for right circularly polarized light and near-gap excitation are shown. When and , , i.e., 100% spin-polarization is achieved. See Ref. 8 for details.
Calculated lattice constant , tetragonal distortion parameter , crystal field splitting , spin-orbit splitting , and valence band splitting for the quaternary compounds in their ground state structure, and their total energy difference per atom between ST and KS structures.
With different degrees (a, b, and c) for the structural relaxation, the calculated , , and of and in ST and KS structures, respectively, and their total energy difference per atom .
Article metrics loading...