Results of our theoretical calculation for the energy levels of a Coulombic donor state in GaN as a function of magnetic field (lines). Notation is that of isotropic H atom in low field limit. States are listed in order of increasing energy within each group in the legend (e.g., ns, 2p, 3p, 3d states). Points show corresponding perturbation theory (PT) results (only 3p- shown of n=3 states for clarity; others deviate similarly from accurate calculation).
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