期刊論文
| 學年 | 96 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2008-07-01 |
| 作品名稱 | Study of the Phase Transition and Charge Ordering in Single-Crystalline Nd1/2Sr1/2MnO3 using X-ray Scattering |
| 作品名稱（其他語言） | |
| 著者 | Du, C.-H.; Ghazi, M. E.; Hatton, P. D.; Collins, S. P.; Murphy, B. M.; Kim, B. G.; Cheong, S-W. |
| 單位 | 淡江大學物理學系 |
| 出版者 | College Park: American Institute of Physics |
| 著錄名稱、卷期、頁數 | Journal of Applied Physics 104(2), 023517(4pages) |
| 摘要 | We report a sequent phase transition using high-resolution synchrotron x-ray scattering in a single crystal Nd1/2Sr1/2MnO3. By measuring the peak profile of Bragg reflections, upon cooling, we observed an increase in the width of the Bragg reflections around the Curie temperature (252 K) corresponding to the transition from a paramagnetic to a ferromagnetic state. Below approximately 200 K, dramatic changes in the width and integrated intensity were observed. Changes continued until the formation of charge ordering with q = (½,0,0) at TCO = 152 K. This charge ordering was observed to be the first order transition with a large hysteresis width of 10 K. This sequent transition is understood by the formation of different magnetic domains at different temperature ranges as that observed by neutron powder diffraction. |
| 關鍵字 | Curie temperature; ferromagnetic materials; ferromagnetic-paramagnetic transitions; magnetic domains; magnetic hysteresis; neodymium compounds; paramagnetic materials; strontium compounds; X-ray scattering |
| 語言 | en |
| ISSN | 0021-8979 1089-7550 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | |
| 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/987654321/74830 ) |