Study of magnetic properties and local structures in discontinuous-CoFe-ZnO multilayers

H. S. Hsu, J. C.A. Huang, Lance Horng, C. H. Lee, Y. H. Huang, Y. F. Liao, M. Z. Lin

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5 引文 斯高帕斯(Scopus)

摘要

In this study, we have investigated the magnetic properties and local structures of discontinuous-Co70Fe30(x Å)-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.

原文English
頁(從 - 到)903-905
頁數3
期刊IEEE Transactions on Magnetics
41
發行號2
DOIs
出版狀態Published - 2005 2月

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 電氣與電子工程

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