Evidence of Matrix Lattice Distortion in Zn1-xCoxO Nanocrystals

doi:10.1021/jp807459s

CORC > 北京大学 > 化学与分子工程学院

	Evidence of Matrix Lattice Distortion in Zn1-xCoxO Nanocrystals
	Zhang, Shuo ; Du, Yaping ; Li, Haiming ; Chu, Wangsheng ; Li, Jiong ; Yan, Wensheng ; Wei, Shiqiang ; Yan, Chunhua ; Wu, Ziyu
刊名	journal of physical chemistry c
	2009
关键词	NEAR-EDGE-STRUCTURE HIGH-TEMPERATURE FERROMAGNETISM ABSORPTION FINE-STRUCTURE K EDGE SEMICONDUCTORS SPECTRA OXIDES
DOI	10.1021/jp807459s
英文摘要	In this work, we investigated the doping effect on the local structure of Co, Zn, and O in Zn1-xCoxO (x = 0.02 and 0.2) nanocrystals by X-ray absorption spectroscopy combined with A initio calculations. We identified the presence of a distorted CoO4 structure and showed that the distortion propagates homogeneously in the matrix with increasing doping concentration. The presence of a distorted matrix lattice plays an important role in the mechanism of room-temperature ferromagnetism observed in diluted magnetic semiconductor materials, which is in agreement with a new mechanism recently introduced. Information on the electronic structure of the bottom of the conduction band has been achieved by O K-edge X-ray absorption near-edge spectroscopy that also addresses significant contributions of the matrix lattice distortion on the distribution of O 2p states.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000264111300009&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; SCI(E); EI; 8; ARTICLE; 11; 4263-4269; 113
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/246421]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Zhang, Shuo,Du, Yaping,Li, Haiming,et al. Evidence of Matrix Lattice Distortion in Zn1-xCoxO Nanocrystals[J]. journal of physical chemistry c,2009.
APA	Zhang, Shuo.,Du, Yaping.,Li, Haiming.,Chu, Wangsheng.,Li, Jiong.,...&Wu, Ziyu.(2009).Evidence of Matrix Lattice Distortion in Zn1-xCoxO Nanocrystals.journal of physical chemistry c.
MLA	Zhang, Shuo,et al."Evidence of Matrix Lattice Distortion in Zn1-xCoxO Nanocrystals".journal of physical chemistry c (2009).