Orbital and bonding anisotropy in a half-filled GaFeO3 magnetoelectric ferrimagnet
SCIE
SCOPUS
- Title
- Orbital and bonding anisotropy in a half-filled GaFeO3 magnetoelectric ferrimagnet
- Authors
- Kim, JY; Koo, TY; Park, JH
- Date Issued
- 2006-02-03
- Publisher
- AMERICAN PHYSICAL SOC
- Abstract
- We investigated the orbital anisotropy of GaFeO3 using the Fe L-2,L-3-edge x-ray magnetic circular dichroism and the polarization dependent O K-edge x-ray absorption spectroscopy. We found that the system shows a considerably large orbital momentum and anisotropic Fe-O bonding, which are unexpected in a half-filled d(5) system such as GaFeO3. The orbital and bonding anisotropies, which turn out to be induced by the lattice distortions with exotic off-centering site movements, contribute the large magnetocrystalline energy and magnetoelasticity. These results provide critical clues on the microscopic understanding of the magnetoelectricity.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/12440
- DOI
- 10.1103/PhysRevLett.96.047205
- ISSN
- 0031-9007
- Article Type
- Article
- Citation
- PHYSICAL REVIEW LETTERS, vol. 96, no. 4, 2006-02-03
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