教師資料查詢 | 類別: 期刊論文 | 教師: 王啟銘 WANG, CHI-MING (瀏覽個人網頁)

標題:Superconductivity, hole concentration and peritectic transition of La1.5CaxBa1.5-xCu3Oy compounds
學年86
學期1
出版(發表)日期1997/08/01
作品名稱Superconductivity, hole concentration and peritectic transition of La1.5CaxBa1.5-xCu3Oy compounds
作品名稱(其他語言)La1.5CaxBa1.5-xCu3Oy化合物的超導性,電洞濃度與色晶轉變
著者Huang, W. N.; Wang, C. M.; Kao, H. C. I.
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 282-287(2), pp.767-768
摘要A series of single phase La1.5CaxBa1.5−xCu3Oy (0 ≤ x ≤ 0.50) compounds with tetragonal triple-perovskite structure is prepared. They have an incongruent melting point at 1107±1°C which is not dependent on the amount of Ca substitution. Oxygen stoichiometry and hole concentration of these materials increase with increasing x. Thermal stability of the oxygen atom in the La1.5CaxBa1.5−xCu3Oy series is independent on the oxygen stoichiometry. For x ≥ 0.25, Tc increases rapidly from 33 K to 73 K with increasing x. Tc of La1.5CaxBa1.5−xCu3Oy is always lower than that of La1.5−xCaxBa1.5Cu3Oy (LC) for a given x, suggesting that an increase in the mole fraction of the trivalent cation in these compounds would decrease its Tc.
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語言英文
ISSN0921-4534
期刊性質國外
收錄於
產學合作
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審稿制度
國別荷蘭
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