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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/102111

    Title: 利用X光吸收光譜和磁圓偏振二向性研究三層膜Pd/Co/Pd/Al2O3的電子結構及磁性特質
    Other Titles: Magnetism and electronic structure of Pd/Co/Pd/Al2O3 trilayer studied by X-ray absorption spectroscopy and magnetic circular dichroism
    Authors: 高肇鴻;Kao, Chao-Hung
    Contributors: 淡江大學物理學系碩士班
    彭維鋒;Pong, Way-Faung
    Keywords: ;;退火;合金;吸收譜;垂直磁性;Pd/Co/Pd;XMCD;XANES;EXAFS;Alloy;PMA
    Date: 2014
    Issue Date: 2015-05-04 09:47:41 (UTC+8)
    Abstract: 此篇之研究報告發現Pd/Co/Pd三層膜結構透過退火處理產生垂直磁異向性 (Perpendicular Magnetic Anisotropy, PMA),藉由X 光吸收近邊緣結構(X-ray Absorption Near Edge Structure)以及延伸X 光吸收精細結構(Extend X-ray Absorption Fine Structure)結果對比合金樣品,可以發現退火效應誘發合金結構。進一步利用X光磁圓偏振二向性(X-ray Magnetic Circular Dichroism)可以發現退火效應導致樣品軌道/自旋磁矩比增強因而改變樣品的磁性異向性,因此我們推論Pd/Co/Pd三層膜透過了退火改變了結構同時也誘發了樣品的垂直磁異向性。
    In Pd/Co/Pd trilayers, we report that the perpendicular magnetic anisotropy (PMA) can be induced by a modification of Pd-Co interface through the post-annealing. By means of magneto-optical Kerr effect, X-ray absorption near-edge structure, extended X-ray absorption fine structure, and X-ray magnetic circular dichroism, we demonstrate that the post-annealing could lead to formation of alloy-like Co structure above the preceding Pd-Co interface. Such interface structure could enhance the PMA owing to the characteristics of perpendicular crystalline anisotropy.
    Appears in Collections:[物理學系暨研究所] 學位論文

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