期刊論文
| 學年 | 87 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 1999-05-01 |
| 作品名稱 | Charge ordering and the related structural phase transition in single crystal Bi0.24Ca0.76MnO3 |
| 作品名稱（其他語言） | |
| 著者 | Su, Y.; Du, C-H.; Hatton, P. D.; Collins, S. P.; Cheong, S-W. |
| 單位 | 淡江大學物理學系 |
| 出版者 | College Park: American Physical Society |
| 著錄名稱、卷期、頁數 | Physical Review B (Condensed Matter and Materials Physics) 59(18), pp.11687-11692 |
| 摘要 | A single crystal of ~Bi0.24Ca0.76!MnO3 has been extensively studied using both laboratory and synchrotron radiation x-ray scattering. Using x-ray techniques we can directly observe the formation of charge stripes associated with the low-temperature structural phase transition. Weak satellite peaks with a modulation wave vector q'(0.24, 0.24, 0) were observed below the transition temperature. These are associated with the charge ordering of Mn31 and Mn41 ions into charge ~and spin! stripes within the perovskite structure. Measurements of the temperature dependence of the intensity and width of the charge-ordering satellites over the temperature range 10–240 K were also completed. These demonstrate the first-order nature of the structural phase transition that accompanies the formation of charge and spin ordering. Measurements of the width of the charge-order satellites demonstrate that the correlation length of the charge order is long range at all temperatures, and in all directions, below the structural phase transition. |
| 關鍵字 | |
| 語言 | en |
| ISSN | 1098-0121 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | Hatton, P. D. |
| 審稿制度 | |
| 國別 | USA |
| 公開徵稿 | |
| 出版型式 | 紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/72694 ) |