Intersite 4p-3d hybridization in cobalt oxides: a resonant x-ray emission spectroscopy study

Details Intersite 4p-3d hybridization in cobalt oxides: a resonant x-ray emission spectroscopy study Intersite 4p-3d hybridization in cobalt oxides: a resonant x-ray emission spectroscopy study

2008-02-20

arxiv.org/abs/0802.2744v1

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

We report on strong dipole transitions to 3d orbitals of neighboring Co atoms in the Co 1s x-ray absorption pre-edge. They are revealed by applying high-resolution resonant x-ray emission spectroscopy (RXES) to compounds containing CoO6 clusters. When contrasted to quadrupole local 1s3d excitations, these non-local 1s3d transitions are identified by their energy dispersion and angular dependence, their sensitivity to second-shell effects (i.e. the connection mode of the CoO6 octahedra and the bond lengths), and an upwards energy shift of 2.5 eV due to the poorer screening of the core hole. The experiment reveals that the intensity of the non-local transitions gauges the oxygen-mediated 4p-O-3d intersite hybridization. We propose a revised interpretation of the pre-edges of transition metal compounds. Detailed analysis of these new features in the pre-edge offers a unique insight in the oxygen mediated metal-metal interactions in transition metal-based systems, which is a crucial aspect in orbital ordering and related electronic and magnetic properties. In addition, the exceptional resolving power of the present 1s2p RXES experiment allows us to demonstrate the coherent second-order nature of the underlying scattering process.

Affiliated with

Also associated with

No associations

Rating

Intersite 4p-3d hybridization in cobalt oxides: a resonant x-ray emission spectroscopy study does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Intersite 4p-3d hybridization in cobalt oxides: a resonant x-ray emission spectroscopy study, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intersite 4p-3d hybridization in cobalt oxides: a resonant x-ray emission spectroscopy study will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-578042