期刊
SOLID STATE COMMUNICATIONS
卷 151, 期 19, 页码 1314-1317出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ssc.2011.06.028
关键词
Semiconductors; EXAFS, NEXAFS, SEXAFS; Scanning and transmission electron microscopy; Electron energy loss spectroscopy
资金
- Helmholtz-Zentrum Berlin - Electron storage ring BESSY-II
- Russian Ministry to education and science [RPN 2.1.1. 5932, RPN 2.1.1.6758]
- Russian Ministry of Education
ZnO/ZnO:Mn core-shell nanowires were studied by means of X-ray absorption spectroscopy of the Mn K- and L-2,L-3-edges and electron energy loss spectroscopy of the O K-edge. The combination of conventional X-ray and nanofocused electron spectroscopies together with advanced theoretical analysis turned out to be fruitful for the clear identification of the Mn phase in the volume of the core-shell structures. Theoretical simulations of spectra, performed using the full-potential linear augmented plane wave approach, confirm that the shell of the nanowires, grown by the pulsed laser deposition method, is a real dilute magnetic semiconductor with Mn2+ atoms at the Zn sites, while the core is pure ZnO. (C) 2011 Elsevier Ltd. All rights reserved.
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