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	Systematic changes of the electronic structure of the diluted ferromagnetic oxide Li-doped Ni1-xFexO with hole doping
	Kobayashi, M. ; Hwang, J. I. ; Song, G. S. ; Ooki, Y. ; Takizawa, M. ; Fujimori, A. ; Takeda, Y. ; Fujimori, S. -I. ; Terai, K. ; Okane, T. ; Saitoh, Y. ; Yamagami, H. ; Lin, Y. -H. ; Nan, C. -W.
	2010-05-10 ; 2010-05-10 ; OCT
关键词	X-RAY-ABSORPTION MAGNETIC SEMICONDUCTORS SPECTROSCOPY PHOTOEMISSION LIXNI1-XO STATES NIO Physics, Condensed Matter
中文摘要	The electronic structure of Li-doped Ni1-xFexO has been investigated using photoemission spectroscopy (PES) and x-ray absorption spectroscopy (XAS). The Ni 2p core-level PES and XAS spectra were not changed by Li doping. In contrast, the Fe3+ intensity increased with Li doping relative to the Fe2+ intensity. However, the increase in Fe3+ is only similar to 5% of the doped Li content, suggesting that most of the doped holes enter the O 2p and/or the charge-transferred configuration Ni 3d(8)L_. The Fe 3d partial density of states and the host valence-band emission near the valence-band maximum increased with Li content, consistent with the increase in electrical conductivity. Based on these findings, percolation of bound magnetic polarons is proposed as an origin of the ferromagnetic behavior.
语种	英语 ; 英语
出版者	AMER PHYSICAL SOC ; COLLEGE PK ; ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/21935]
专题	清华大学
推荐引用方式 GB/T 7714	Kobayashi, M.,Hwang, J. I.,Song, G. S.,et al. Systematic changes of the electronic structure of the diluted ferromagnetic oxide Li-doped Ni1-xFexO with hole doping[J],2010, 2010, OCT.
APA	Kobayashi, M..,Hwang, J. I..,Song, G. S..,Ooki, Y..,Takizawa, M..,...&Nan, C. -W..(2010).Systematic changes of the electronic structure of the diluted ferromagnetic oxide Li-doped Ni1-xFexO with hole doping..
MLA	Kobayashi, M.,et al."Systematic changes of the electronic structure of the diluted ferromagnetic oxide Li-doped Ni1-xFexO with hole doping".(2010).

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