Presentation Information
[1P03]Theory of spin-polarization in resonant photoemission of 3d transition metals
*Keita Hamada1, Peter Krüger1 (1. Graduate School of Science and Engineering, Chiba University)
Resonant photoemission at the 2p-absorption edge of transition elements can be used as an element- and orbital-specific probe of the valence electronic structure of transition metal compounds. Using a single atom model within the framework of multiplet ligand field theory [1], the energies of Auger electrons were calculated to estimate spin polarization. Transition metals Mn, Co, Fe, and Ni were selected for this analysis. Spin polarization values were computed for each metal’s ground state, L3 resonance(res), and L2 res, and compared across these states and res. The result that the spin-polarization at the L2 res exhibited very low spin polarization. This is attributed to spin–orbit interactions-where the 2p core holes do not form eigenstates of Sz, affecting their spin properties. Reference[1] Arata Tanaka, Takeo Jo, Journal of the Physical Society of Japan, Vol.63, No 7, 2788-2807(1994)