Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2006-11-21
Phys. Rev. B 74, 245111 (2006)
Physics
Condensed Matter
Strongly Correlated Electrons
5 pages, 4 figures
Scientific paper
10.1103/PhysRevB.74.245111
We have investigated the valence, spin, and orbital state of the Co ions in the one-dimensional cobaltate Ca3Co2O6 using x-ray absorption and x-ray magnetic circular dichroism at the Co-L2,3 edges. The Co ions at both the octahedral Co_oct and trigonal Co_trig sites are found to be in a 3+ state. From the analysis of the dichroism we established a low-spin state for the Co_oct and a high-spin state with an anomalously large orbital moment of 1.7 muB at the Co3+ trig ions. This large orbital moment along the c-axis chain and the unusually large magnetocrystalline anisotropy can be traced back to the double occupancy of the d2 orbital in trigonal crystal field.
Brookes Nicholas B.
Burnus Tobias
Cezar Criginski J.
Chen Chien-Tsu
Flahaut Delphine
No associations
LandOfFree
Valence, spin, and orbital state of the Co ions in the one-dimensional Ca3Co2O6: an x-ray absorption and magnetic circular dichroism 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 Valence, spin, and orbital state of the Co ions in the one-dimensional Ca3Co2O6: an x-ray absorption and magnetic circular dichroism study, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valence, spin, and orbital state of the Co ions in the one-dimensional Ca3Co2O6: an x-ray absorption and magnetic circular dichroism study will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-338239