期刊刊名：修平學報 　 卷期：36期

篇名出版日期：2018年3月1日

作者：Chi-Yang Shen, Chung-Cheng Chiang, Huang-Wei Chang, Fu-Te Yuan,申繼陽,蔣忠誠,張晃暐,袁輔德

語言：English

關鍵字：Fept films, Fuse quartz substrates, Mn-doping, Magnetic properties, Microstructure,FePt膜,石英基板,Mn參雜,磁性質,微結構

被點閱次數：2次

閱讀時間：12sec

摘要：
Fe-Pt-Mn thin films were deposited on quartz substrates and post annealed at a temperature range of 25-800℃ . The studied compositions include Fe₅₀Pt₄₃Mn₇, Fe₅₀Pt₄₆Mn₄, and Fe₄₀Pt₅₆Mn₄. X-ray diffraction data indicate that the Mn dissolving in the FePt lattice tends to stabilize the disordered fcc-FePt phase. The ordering transformation temperature was thus increased by about 150℃. Besides, Mn also shows an effect of microstructure refining by 40%. L1₀ ordering can be enhanced by alloying a high concentration of 56 at% Pt. The higher degree of ordering enhances the coercivity value. бM analysis indicate that larger grain sizes and higher ordering significantly reduce the intergranular interactions of the Fe-Pt-Mn films.

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