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Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/15380

Title: Study of Magnetic Properties and Local Structures in Discontinuous-CoFe-ZnO Multilayers
Authors: Hsu, H. S.;Huang, J. C. A.;Horng, Lance;Lee, C. H.;Huang, Y. H.;Luao, Y. F.;Lin, M. Z.
Contributors: 物理學系
Keywords: Diluted magnetic semiconductor (DMS);Discontinuous multiplayer;Extended X-ray absorption fine structure(EXAFS)
Date: 2005-02
Issue Date: 2013-02-05T02:18:52Z
Publisher: IEEE
Abstract: In this study, we have investigated the magnetic properties and local structures of discontinuous-Co70Fe30(x �)-ZnO multilayers (MLs). With the variation of Co70Fe30 nominal thickness, the phase transition from diluted magnetic semiconductor (DMS) phase, x=1 ML, to granular phase, x=5, and 9 MLs, is indicated from the measurements of magnetization versus temperature behavior and extended X-ray absorption fine structure (EXAFS) on Co or Fe K-edge. The analysis of EXAFS at Zn K-edge shows the reduction of Co coordination numbers with the increasing CoFe thickness. This result demonstrates that the CoFe grain size plays an important role in the formation of DMS and is greatly critical for multilayer growth technique.
Relation: IEEE Trans. on Magnetics, 41(2): 903-905
Appears in Collections:[物理學系] 期刊論文

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