Abstract
Through the utilization of element-resolved polarized x-ray probes, the electronic and magnetic state of an artificial La2 FeCrO6 double perovskite were explored. Applying unit-cell level control of thin film growth on SrTiO3 (111), the rock salt double perovskite structure can be created for this system, which does not have an ordered perovskite phase in the bulk. We find that the Fe and Cr are in the proper 3+ valence state, but, contrary to previous studies, the element-resolved magnetic studies find the moments in field are small and show no evidence of sizable magnetic moments in the remanent state. Based on our findings, we argue that the ground state is consistent with canted antiferromagnetic order.
| Original language | English |
|---|---|
| Article number | 013105 |
| Journal | Applied Physics Letters |
| Volume | 97 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jul 5 2010 |
Funding
The authors acknowledge fruitful discussions with W. Pickett, V. Pardo, S. Okamoto, and D. Khomskii. J.C. was supported by DOD-ARO under the Contract No. 0402-17291 and NSF Contract No. DMR-0747808. Work at the Advanced Photon Source, Argonne is supported by the U.S. Department of Energy, Office of Science under Grant No. DEAC02-06CH11357. The synthesis work at Oak Ridge National Laboratory (H.N.L.) was sponsored by the Division of Materials Sciences and Engineering, U.S. Department of Energy.