Spin Polarization of the Resonant Two-Hole Bound State in Ni Photoemission

We calculate the spin polarization of the 6-eV resonant satellite in Ni $3d$-band photoemission. The satellite is identified with the $3d^8$ configuration, and the resonant process involves the absorption $3p^{6}3d^9\to 3p^{5}3d^{10}$ followed by the super—Coster-Kronig transition $3p^{5}3d^{10}\to 3p^{6}3d^8\epsilon l$. The spin-up (majority) to spin-down (minority) intensity ratio is found to be approximately 4: 1 for the resonant process, whereas nonresonant Auger decay is found to be essentially unpolarized.