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Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/15433

Title: Ferromagnetism Study of Co0.2MgxZn0.8−xO Films Prepared by the Sol–Gel Method
Authors: Lin, Yow-Jon;Tsai, Chia-Lung;Liu, Chia-Jyi;Horng, Lance;Shih, Yu-Tai;Wang, Mu-Shan;Jhang, Chuan-Sheng;Huang, Chao-Shien
Contributors: 物理學系
Keywords: ZnO;Ferromagnetism;Defect;Photoluminescence;Characterization
Date: 2009
Issue Date: 2013-02-05T02:20:29Z
Publisher: SpringerLink
Abstract: Co0.2Mg x Zn0.8−x O films prepared with different molar ratio of magnesium acetate to zinc acetate were deposited on substrates by the sol–gel technique. X-ray diffraction, photoluminescence (PL) and ferromagnetism measurements were used to characterize the Co0.2Mg x Zn0.8−x O diluted magnetic semiconductors. The acceptor-like defects were determined in the PL band and the intensity of the acceptor-related PL increased with increasing Mg concentration. Therefore, an increase in the number of the acceptor-like defects (zinc vacancies especially) in the Co0.2Mg x Zn0.8−x O film may lead to the enhancement of the magnetic properties. It is worth noting that changes in Mg concentration and the number of the acceptor-like defects are important issues for producing strong ferromagnetism Co0.2Mg x Zn0.8−x O films prepared by the sol–gel method.
Relation: Journal of Sol-Gel Science and Technology, 52(1): 109-112
Appears in Collections:[物理學系] 期刊論文

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