Hole localization in Pr-doped RBa2Cu3O7−y systems
學年 86
學期 1
出版(發表)日期 1997-12-01
作品名稱 Hole localization in Pr-doped RBa2Cu3O7−y systems
著者 Kao, H.-C. I.; Yu, F. C.; Guan, W.
單位 淡江大學化學學系
出版者 Amsterdam: Elsevier BV * North-Holland
著錄名稱、卷期、頁數 Physica C: Superconductivity and its Applications 292, pp.53-58
摘要 The hole concentration per unit cell (p) was measured by using an iodometric titration technique for bulk Gd1-xPrxBa2Cu3O7-y (x = 0.1-0.9) and R0.8Pr0.7Ba2Cu3O7-y (R = Yb, Er, Dy, Gd and Nd) samples. These data were compared with the Hail number per unit cell (nH) at 100 K and superconducting transition temperature (Tc) reported in the literature. We suggest that the hybridization between 4f states of the Pr ion and the conduction band states in CuO2 planes, leading to the hole localization are the mechanism for the suppression of superconductivity in these systems. The correlation between Tc and p cannot be described by the empirical relation observed in many high-Tc oxides.
關鍵字 Clustering Protocol;Data Aggregation
語言 en
ISSN 0921-4534
期刊性質 國外
收錄於 SCI
國別 NLD
出版型式 紙本

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/25003 )