期刊論文
| 學年 | 99 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2011-02-01 |
| 作品名稱 | Magnetically induced electric polarization reversal in multiferroic TbMn2O5: Terbium spin reorientation studied by resonant x-ray diffraction |
| 作品名稱（其他語言） | |
| 著者 | Johnson, R. D.; Mazzoli, C.; Bland, S. R.; Du, C. H.; Hatton, P. D. |
| 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 83(5), 054438(4pages) |
| 摘要 | In multiferroic TbMn2O5, the behavior of the terbium ions forms a crucial part of the magnetoelectric coupling. The result is a magnetically induced reversal of the electric polarization at 2 T. In this article we present the first direct measurement of the terbium magnetic structure under applied magnetic fields. Contrary to the current interpretation of the magnetic properties of TbMn2O5, we show that upon the electric polarization reversal the terbium sublattice adopts a canted antiferromagnetic structure with a large component of magnetic moment parallel to the a axis. Furthermore, we provide evidence for a coupling between the manganese 3d magnetic structure and the terbium 4f magnetism, which is of great significance in the elusive magnetoelectric mechanisms at play |
| 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/987654321/74867 ) |