期刊刊名：修平學報 　 卷期：29期

篇名出版日期：2014年9月1日

作者：申繼陽,袁輔德,張晃暐, Shen Chi Yang,Yuan Fu Te,Chang Huang Wei

語言：English

關鍵字：FePt, thin films, magnetic properties, Ag underpayer,鐵鉑,薄膜,磁性質,銀底層

被點閱次數：1次

閱讀時間：3sec

摘要：
FePt and FePt/Ag thin films with FePt layer thickness in the range of 0.5 to 5 nm were deposited on glass substrates. Two different thermal processes were applied to induce L1⁰-ordering of FePt including in-situ heating and post annealing. For in-situ heating process, Ag underlayer blocks ordering leading to low coercivity and reduced magnetization; on the contrary, for post annealing process, the insertion of Ag underlayer significantly enhances L1⁰-ordering of FePt. Onset temperature of ordering of FePt/Ag films is averagely about 200˚C lower than that of the single layer samples. High coercivity of 4.5 and 15 kOe are achieved in the samples with FePt layer thickness 2 and 5 nm, respectively. Results of microstructure suggest that the enhanced diffusion of FePt on Ag surface may be one of the important reasons for improved ordering.

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