Interface Ferromagnetism and Orbital Reconstruction in BiFeO3-La0.7 Sr0.3 MnO3 Heterostructures
Journal Article
·
· Physical Review Letters
OSTI ID:988271
We report the formation of a novel ferromagnetic state in the antiferromagnet BiFeO{sub 3} at the interface with La{sub 0.7}Sr{sub 0.3}MnO{sub 3}. Using x-ray magnetic circular dichroism at Mn and Fe L{sub 2,3}-edges, we discovered that the development of this ferromagnetic spin structure is strongly associated with the onset of a significant exchange bias. Our results demonstrate that the magnetic state is directly related with an electronic orbital reconstruction at the interface, which is supported by the linearly polarized x-ray absorption measurement at oxygen K-edge.
- Research Organization:
- BROOKHAVEN NATIONAL LABORATORY (BNL)
- Sponsoring Organization:
- Doe - Office Of Science
- DOE Contract Number:
- AC02-98CH10886
- OSTI ID:
- 988271
- Report Number(s):
- BNL--93878-2010-JA; KC0401030
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Vol. 105; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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