本篇論文中我們想探討於超導薄膜下加入鐵磁層後，對超導磁通量子的分佈有何影響，我們以KrF脈衝雷射沉積(Pulsed Laser Deposition, PLD)方式在SrTiO3基板上製作出YBa2Cu3Oδ(100 nm)單層膜、La0.67Ca0.33MnO3(30 nm)單層膜，以及La0.67Ca0.33MnO3 (30 nm)/ YBa2Cu3Oδ (100 nm)雙層膜，從電性量測上來看YBa2Cu3Oδ薄膜Tc約為88K，而La0.67Ca0.33MnO3的金屬轉絕緣的臨界溫度TCurie約為240K。量測部分使用超導量子干涉元件掃描儀(SSM)觀察場冷下鐵磁層對二類超導體磁通分布，結果顯示單層超導膜有明顯的磁通量子，但是La0.67Ca0.33MnO3 (30 nm)/ YBa2Cu3Oδ (100 nm)雙層膜則無法分辨單一磁通量子，可見鐵磁層對超導薄膜的磁通量子分布影像甚鉅，因此再利用超導量子干涉儀(SQUID)去探討雙層膜總磁矩的行為，並同時發現YBa2Cu3Oδ單層膜的M-H曲線降場時存在跳躍行為，藉著AFM得知此行為與晶粒大小和晶界有密切關係，而雙層膜的部分低場下鐵磁層(30 nm)並無提升釘扎效應，且於YBa2Cu3Oδ上覆蓋鐵磁層後M-H曲線的跳躍行為則會位移且變得平緩，我們將於本論文中逐一探討上述的現象。

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