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:Superconductivity and the Anomalous Meissner Effect in La3CaBa3Cu7O(subscript 15.5+×) Oxide(superscript ‡)
學年80
學期2
出版(發表)日期1992/02/01
作品名稱Superconductivity and the Anomalous Meissner Effect in La3CaBa3Cu7O(subscript 15.5+×) Oxide(superscript ‡)
作品名稱(其他語言)La3CaBa3Cu7015.5+d的異常麥思那效應與超導性
著者Wang, C. M.; 王啓銘; Yang, Y. F.; 高惠春; Kao, H. C. I.
單位淡江大學化學學系
出版者臺北市中國化學學會
著錄名稱、卷期、頁數Journal of the Chinese Chemical Society=中國化學會會誌 39(1), pp.67-69
摘要A superconducting oxide with a stoichiometry La/sub 3/CaBa/sub 3/Cu/sub 7/O/sub 15.5+x/, in which x=0.75, was prepared. It had a tetragonal triple-perovskite structure with lattice parameters a=3.879.ANG. and c=11.637.ANG.. According to resistivity measurements, a sharp superconducting transition,.DELTA.T/sub c/(10-90%)=1.5K, and T/sub c(zero)/=80K were observed. When it was measured at a small magnetic field(10-20 gauss) with field cooling, the sintered pellet showed a positive magnetic susceptibility, but the powdered sample exhibited the diamagnetism of a typical superconductor. However, no peculiar shielding effect was found in both the sintered and powdered samples.
關鍵字
語言英文
ISSN0009-4536
期刊性質國內
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產學合作
通訊作者
審稿制度
國別中華民國
公開徵稿
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