教師資料查詢 | 類別: 期刊論文 | 教師: 高惠春 KAO, HUEY-CHUEN (瀏覽個人網頁)

標題:Anomalous Pr ordering and structural analysis for oxygenated tetragonal 1212 compound Pr1.5Ba1.5Cu3O7.2
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
語言英文
ISSN0022-2291
期刊性質國內
收錄於
產學合作
通訊作者
審稿制度
國別中華民國
公開徵稿
出版型式,電子版
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