期刊論文
| 學年 | 102 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2014-06-19 |
| 作品名稱 | The electronic and magnetic properties of La0.85Zr0.15MnO3 deposited on SrTiO3 and MgO substrates |
| 作品名稱（其他語言） | |
| 著者 | N. G. Deshpande; C. H. Weng; Y. F. Wang; Y. C. Shao; C. Q. Cheng; D. C. Ling; H. C. Hsueh; C. H. Du; H. M.Tsai; C. W. Pao; H. J. Lin; J. F. Lee; J. W. Chiou; M. H. Tsai; W. F. Pong |
| 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 115, 233713(10pages) |
| 摘要 | The electronic and magnetic properties of tetravalent-ion-doped La0.85Zr0.15MnO3 (LZMO) thin films that were epitaxially grown on SrTiO3 (STO) and MgO substrates were studied using temperature-dependent x-ray diffraction (XRD), x-ray absorption near-edge structure, x-ray linear dichroism, and x-ray magnetic circular dichroism at the Mn L 3,2- and K-edge. XRD studies reveal that the LZMO thin films have compressive and tensile strains (along the c -axis) on the STO and MgO substrates, respectively. As the temperature is reduced from room temperature to below magnetic transition temperature, the preferentially occupied Mn majority-spin e g orbital changes from the in-plane dx 2 -y 2 to the out-of-plane d 3 z 2 -r 2 orbital for LZMO/STO, and vice versa for LZMO/MgO. Experimental results suggest that the new hopping path that is mediated by the Mn2+ ions triggers a stronger d 3 z 2 -r 2 orbital ordering of Mn3+ ions and enhances the ferromagnetic coupling between the Mn spin moments of t 2g electrons in LZMO/STO, whereas the strong tensile strain stabilizes the dx 2 -y 2 orbital by inducing lattice distortions of the MnO6 octahedra in LZMO/MgO. |
| 關鍵字 | X-ray absorption near edge structure;Ferromagnetism;Epitaxy;X-ray diffraction;Doping |
| 語言 | en_US |
| ISSN | 0021-8979 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | 國內 國外 |
| 通訊作者 | Ling, D. C.; Pong, W. F. |
| 審稿制度 | 是 |
| 國別 | USA |
| 公開徵稿 | |
| 出版型式 | ,電子版,紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/98235 ) |