(1s,3p) processes of resonant x–ray Raman scattering in Co

G. STUTZG; G. TIRAO

Congreso; XIX Reunión Anual de Usuarios del LNLS; 2009

Resonant inelastic scattering (RIXS) or resonant Ramanscattering of x–rays is a second order process which can bevisualized as an x–ray absorption process followed by an x–ray emission one. The latter transition assumes that a radiativedecay channel takes place, whereas in the case of a non–radiative event an Auger electron is emitted. The virtual intermediatestate consists of a core–hole in a deep lying atomicshell and an electron promoted into an empty state above theFermi level. The final state in a radiative process is composedof a core–hole in an upper atomic level, the excited electroninto the continuum and the scattered x–ray photon. Resonanceexcitation occurs when the energy of the incident photons istuned below or closely above the core ionization threshold.In this report we present a high resolution study of the grossfeatures of the (1s,3p) RIXS process at the K–edge of Co.