| 標題：Ion substitution effects on the structure stability of cuprate superconductors | |
|---|---|
| 學年 | |
| 學期 | |
| 出版（發表）日期 | 2000/11/01 |
| 作品名稱 | Ion substitution effects on the structure stability of cuprate superconductors |
| 作品名稱（其他語言） | |
| 著者 | 錢凡之; Chien, F. Z. |
| 單位 | 淡江大學物理學系 |
| 出版者 | 淡江大學 |
| 著錄名稱、卷期、頁數 | Tamkang journal of science and engineering 3(3), pp.139-144 |
| 摘要 | We have demonstrated that using a transition metal ion to partially substitute Cu ion of the YSr2Cu3Oy can stabilize its crystal structure and retain superconductivity. The superconducting transition temperature in YSr2(Cu1-xMx)3Oy, where M is transition metal ion, ranges from 40K to 80K depending on the specific M ion. Lattice contraction due to Sr substitution makes the Ba/Sr ion to move closer to CuO plane, and consequently leads to a charge transfer between oxygen. Our study shows that the key factor controlling the structural stability in Y-Sr-Cu-O system is the effective ionic radius Sr in lattice. The introduction of transition metal doping is to increase the effective ionic radius of Sr through the increase of oxygen content. |
| 關鍵字 | superconductivity;lattice parameters;perovskite;tolerance factor |
| 語言 | 英文(美國) |
| ISSN | 1560-6686 |
| 期刊性質 | 國內 |
| 收錄於 | |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 否 |
| 國別 | 中華民國 |
| 公開徵稿 | |
| 出版型式 | ,紙本 |
| 相關連結 | |
| SDGs | |
GoogleAnalytics
