Modification of RIXS spectra of cuprates due to self energy and matrix element effects

We present a three-band Hubbard Hamiltonian and the associated Cu K-edge resonant inelastic x-ray scattering (RIXS) spectra for electron- and hole-doped cuprates over a wide range of energy and momentum transfers [1]. Intraband and interband excitations across the Fermi energy have been observed in several experiments [2]. We study the doping dependence of the Mott insulator phase transition using RIXS, in particular accounting for the roles of self energy and matrix element effects in modifying the spectra [3]. Work is supported in part by USDOE. \\[4pt] [1] R.S. Markiewicz, A. Bansil, Phys. Rev. Lett. {\bf 96}, 107005 (2006).\\[0pt] [2] Y.W. Li {\it et al.}, Phys. Rev. B {\bf 78}, 073104 (2008).\\[0pt] [3] R.S. Markiewicz {\it et al.}, Phys. Rev. B. {\bf 76}, 174514 (2007).