%0 Journal Article
%T Charge-orbital-lattice coupling effects in the dd-excitation profile of one dimensional cuprates
%A J. J. Lee
%A B. Moritz
%A W. S. Lee
%A M. Yi
%A C. J. Jia
%A A. P. Sorini
%A K. Kudo
%A Y. Koike
%A K. J. Zhou
%A C. Monney
%A V. Strocov
%A L. Patthey
%A T. Schmitt
%A T. P. Devereaux
%A Z. X. Shen
%J Physics
%D 2013
%I arXiv
%R 10.1103/PhysRevB.89.041104
%X We identify dd-excitations in the quasi-one dimensional compound Ca$_2$Y$_2$Cu$_5$O$_{10}$ using resonant inelastic x-ray scattering. By tuning across the Cu L$_3$-edge, we observe abrupt shifts in the dd-peak positions as a function of incident photon energy. This observation demonstrates orbital-specific coupling of the high-energy excited states of the system to the low-energy degrees of freedom. A Franck-Condon treatment of electron-lattice coupling, consistent with other measurements in this compound, reproduces these shifts, explains the Gaussian lineshapes, and highlights charge-orbital-lattice renormalization in the high energy d-manifold.
%U http://arxiv.org/abs/1312.2639v1