我 們 研 究 Nd0.35Sr0.65MnO3、 YBa2Cu3O7 與 Nd0.35Sr0.65MnO3/ YBa2Cu3O7 薄膜材料及 SmBaMn2O6 單晶材料的橢圓偏振光譜及 SmBaMn2O6單晶材料的拉曼散射光譜，歸納以下五點結論：
第一，Nd0.35Sr0.65MnO3薄膜有 2 個主要的吸收峰：1.1 eV 與 3.7 eV
，分別對應到 Mn3+d 軌域→鄰近 Mn4+d 軌域及 O 2p→Mn 3d 軌域的 電子躍遷。
第二，YBa2Cu3O7薄膜有 3 個主要的吸收峰：3.1 eV、3.8 eV 與 4.6 eV，3.1 eV 對應到 O 2p→Cu 3d 軌域的電子躍遷，3.8 和 4.6 eV 兩 個峰對應到 Cu(1) 3𝑑3𝑧2−𝑟2→𝑝𝑥或其他多種躍遷。
第三，Nd0.35Sr0.65MnO3/ YBa2Cu3O7異質結構中，NSMO 之 1.1 eV 吸收峰消失，且其他峰值紅移，較單層多一個新的吸收峰於 3.0 eV。
YBCO 之 3.8 eV 與 6.1 eV 吸收峰消失，3.1 eV 吸收峰紅移，4.6 eV 吸收峰增強。這些現象指出 NSMO 與 YBCO 會互相影響，且 YBCO 受影響較多。NSMO/YBCO 異質結構的吸收峰位置與強度不同於 NSMO 與 YBCO 單層薄膜，可能與薄膜應變效應的改變有關，新產 生與消失的吸收峰，推測為界面所引起。
第四，SmBaMn2O6單晶有三個主要的吸收峰：1.3 eV、3.4 eV 及
4.2 eV，第一個對應 Mn3+ 𝑑3𝑥2−𝑟2或𝑑3𝑦2−𝑟2鄰近 Mn４+ d 軌域之電子 躍遷，第二、三個對應 O 2p→Mn 3d 軌域之電子躍遷。樣品在電荷有 序-無序相轉變溫度(370 K)時吸，X 光繞射實驗顯示 Jahn-Teller 效應 減緩，導致 d-d 電子躍遷能量減小。
第五，由 SmBaMn2O6單晶的拉曼散射光譜研究得知，其 4 個主 要拉曼峰：196 cm-1、330 cm-1、485 cm-1及 614 cm-1，分別為旋轉 1、
旋轉 2、J-T 扭曲及呼吸振動模，旋轉 1 及呼吸振動模在溫度高於 330 K 時消失；溫度低於 200 K 時 J-T 扭曲及呼吸振動模皆分裂成兩個峰 且整個頻譜多了許多新的拉曼峰，表示有強烈的電荷-軌道耦合與超 晶格的產生。溫度改變造成 MnO6八面體之旋轉、扭曲、傾斜，溫度 升高時，Mn-O 鍵角減小，J-T 扭曲減弱，引發晶格電荷軌道的無序。
未 來 ， 我 們 希 望 可 以 量 測 Nd0.35Sr0.65MnO3、 YBa2Cu3O7 與 Nd0.35Sr0.65MnO3/ YBa2Cu3O7薄膜材料的低溫吸收光譜，探究其在尼爾 溫度及自旋傾斜相轉變溫度時電子結構的變化，進一步探討異質結構 中，雙層薄膜互相的影響及其與超導相轉變溫度的關聯性。我們也希 望可以量測 SmBaMn2O6單晶樣品的低溫吸收光譜，探究其在尼爾溫 度與電荷有序相轉變溫度時，其電子結構的變化，另外，也可以量測 YBaMn2O6、NdBaMn2O6…等 RBaMn2O6系列材料之變溫吸收光譜與 拉曼散射光譜，探究其電子結構與晶格結構的變化。
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