Local electronic and magnetic studies of an artificial La{sub 2}FeCr{sub 6}.

Journal Article · Mon Jul 05 04:00:00 EDT 2010 · Appl. Phys. Lett.

DOI:https://doi.org/10.1063/1.3455323· OSTI ID:984714

Gray, B; Lee, H N; Liu, J; Chakhalian, J; Freeland, J W; ORNL,

Through the utilization of element-resolved polarized x-ray probes, the electronic and magnetic state of an artificial La{sub 2}FeCrO{sub 6} double perovskite were explored. Applying unit-cell level control of thin film growth on SrTiO{sub 3}(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{sup +} 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.

• Research Organization: Argonne National Laboratory (ANL)
• Sponsoring Organization: NSF; SC
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 984714
• Report Number(s): ANL/XSD/JA-66845
• Journal Information: Appl. Phys. Lett., Journal Name: Appl. Phys. Lett. Journal Issue: Jul. 5, 2010 Vol. 97; ISSN 0003-6951
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
GROUND STATES
MAGNETIC MOMENTS
PEROVSKITE
SALT DEPOSITS
THIN FILMS
VALENCE