Resonant inelastic X-ray scattering at the Be 1s edge in BeO
- Kaambre, T.
- Kikas, A.
- Kooser, K.
- Kisand, V.
- Kirm, M.
- Saar, A.
- Nommiste, E.
- Ivanov, V.
- Pustovarov, V.
- Martinson, Indrek
DOIAbstract
We present the resonant inelastic X-ray scattering (RIXS) spectra of BeO at the Be 1s photoabsorption edge. The RIXS spectra excited in the vicinity of the core exciton resonance show two principal features: the scattering on a valence exciton (which at higher excitation energies verges into the characteristic K alpha emission), and a remarkably strong energy loss side-band to the elastic scattering peak, which has a maximum width of 6 eV and has intensity, at resonance, comparable to the valence scattering. The energy loss side-band appears to result from rapid lattice relaxation at the absorption site on the X-ray scattering time-span. (c) 2006 Elsevier B.V. All rights reserved
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