| Literature DB >> 20867733 |
P Yu1, J-S Lee, S Okamoto, M D Rossell, M Huijben, C-H Yang, Q He, J X Zhang, S Y Yang, M J Lee, Q M Ramasse, R Erni, Y-H Chu, D A Arena, C-C Kao, L W Martin, R Ramesh.
Abstract
We report the formation of a novel ferromagnetic state in the antiferromagnet BiFeO3 at the interface with ferromagnet La(0.7)Sr(0.3)MnO3. Using x-ray magnetic circular dichroism at Mn and Fe L(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 to an electronic orbital reconstruction at the interface, which is supported by the linearly polarized x-ray absorption measurement at the oxygen K edge.Entities:
Year: 2010 PMID： 20867733 DOI： 10.1103/PhysRevLett.105.027201
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161