期刊論文
學年 | 88 |
---|---|
學期 | 1 |
出版(發表)日期 | 1999-11-01 |
作品名稱 | Anomalous Pr ordering and structural analysis for oxygenated tetragonal 1212 compound Pr1.5Ba1.5Cu3O7.2 |
作品名稱(其他語言) | |
著者 | Ku, H. C.; Luo, H. M.; Chi, Y. P.; Lin, B. N.; Hsu, Y. Y.; Lee, T. J.; Shi, J. B.; 高惠春; Kao, H. C. I. |
單位 | 淡江大學化學學系 |
出版者 | Springer |
著錄名稱、卷期、頁數 | Journal of low temperature physics 117(3-4), pp.885-890 |
摘要 | Magnetic measurement and powder X-ray Rietveld analysis are performed on oxygenated Pr1.5Ba1.5Cu3O7.2cuprate. This tetragonal compound with lattice parameters a = 0.38916 nm and c = 1.16177 nm is found to form the TlBa2CaCu2O71212-type structure when written as Cu[Ba1.5Pr0.5]PrCu2O7.2. Low temperature magnetic data indicate that anomalous Pr order temperature TN(Pr) decreases from 18 K for orthorhombic PrBa2Cu3O6.9to 10.5 K for Pr1.5Ba1.5Cu3O7.2. The increasing Pr-O bond length with decreasing TNindicates that Pr ordering is closely correlated with the wave function overlap between Pr-4f orbital and O-2pπorbital in the CuO2bi-layers. |
關鍵字 | |
語言 | en |
ISSN | 0022-2291 |
期刊性質 | 國內 |
收錄於 | |
產學合作 | |
通訊作者 | |
審稿制度 | 否 |
國別 | TWN |
公開徵稿 | |
出版型式 | ,電子版 |
相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/25555 ) |