期刊
APPLIED PHYSICS LETTERS
卷 101, 期 4, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4737208
关键词
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资金
- U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-SC0002334]
- National Science Foundation Materials Research Science and Engineering Centers (MRSEC) program [DMR 1120296, DMR-0820404]
- NSF [IMR-0417392]
- Army Research Office
Electron energy loss spectroscopy on an aberration-corrected scanning transmission electron microscope was used to map the elemental composition and bonding in a thin film of the multiferroic LuFe2O4 with atomic resolution. A two-dimensional analysis of the fine structure of the O-K edge yielded distinct signals for the two inequivalent oxygen sites in the crystal. Comparison to an ab-initio simulation showed that these two components can be interpreted in terms of the differing hybridization of the O p orbitals to the Lu and Fe d orbitals, thus producing an atomic-resolution map of the local oxygen bonding environment. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4737208]
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