Abstract
High-resolution resonant inelastic x-ray scattering (RIXS) at the oxygen edge has been used to study the orbital excitations of and . In combination with linear dichroism x-ray absorption spectroscopy, the ruthenium -orbital occupation and excitations were probed through their hybridization with the oxygen orbitals. These results are described within a minimal model, taking into account crystal field splitting and a spin-orbit coupling meV. The effects of spin-orbit interaction on the electronic structure and implications for the Mott and superconducting ground states of (Ca,Sr) are discussed.
- Received 19 December 2014
- Revised 2 March 2015
- Corrected 5 May 2015
DOI:https://doi.org/10.1103/PhysRevB.91.155104
©2015 American Physical Society
Corrections
5 May 2015