磁性記錄媒體從早期將磁性粒子舖灑在高分子上形成薄帶，一路到今日將磁性薄膜鍍在鋁(或玻璃)基板上的磁碟片，其間記錄密度一路攀升。相對於磁記錄儲存資料的高容量與高速度，光記錄的主要優勢在於可攜帶性與低價位。而為了更符合使用者的需求，可覆寫的光碟(Rewritable)也在同時間被發展出來，其中磁光型光碟(Magneto-Optical, MO)最具發展潛力。
如何提升儲存密度是磁光儲存技術一直以來的研究重點，這類材料基本上必須具有垂直磁異向性，且能在室溫中維持穩定態，資料記錄不會隨讀取的過程而有所改變，並有明顯的柯爾旋轉角。本文主要介紹在磁光材料發展上Ni、Co/Pt等多層膜的發展，並以磁光柯爾效應測量鎳單晶-Ni(100)晶體塊材，顯示Ni(100)的塊材有二對稱的磁異向性，並介紹本實驗室在歷年來發表之文獻，包含了Co/Pt(111)、Ag/Co/Pt(111)及Co/Ag/Pt(111)系統，以及相關之重大發現:
1.Co和Pt形成合金時，垂直磁異向性(perpendicular magnetic anisotropy, PMA)會有增強的現象，這些現象和Co-Pt合金中Co和Pt的比例有關。
2.Ag覆蓋層會使Co/Pt(111)系統產生spin reorientation transition (SRT)。成功地利用有效磁異向性常數（effective magnetic anisotropy constant，Eeff）來解釋Ag覆蓋層造成SRT的現象。
並把這些論文著作的實驗數據及其重要發現做一整理，並以樣品系統作為陳述的區分。
文末在結語的部分討論與高中資優教育之相關。

參考網頁
1.http://wms.tyai.tyc.edu.tw/~s112208/208R02.htm
2.http://www-901.ibm.com/tw/press/innovation/innovation.html
3.http://www.shoppingguide.com.tw/news/print/news2003-02-14-008.html
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