期刊論文
| 學年 | 106 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2018-05-17 |
| 作品名稱 | Origin of magnetic properties in carbon implanted ZnO nanowires |
| 作品名稱（其他語言） | |
| 著者 | Y. F. Wang; Y. C. Shao; S. H. Hsieh; Y. K. Chang; P. H. Ye h; H. C. Hsueh; J. W. Chiou; H. T. Wang; S. C. Ray; H. M. Tsai; C. W. Pao; C. H. Chen; H. J. Lin; J. F. Lee; C. T. Wu; J. J. Wu; Y. M. Chang; K. Asokan; K. H. Chae; T. Ohigashi; Y. Takagi; T. Yokoyama; N. Kosugi; W. F. Pong |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Scientific Reports 8, p.7758 |
| 摘要 | Various synchrotron radiation-based spectroscopic and microscopic techniques are used to elucidate the room-temperature ferromagnetism of carbon-doped ZnO-nanowires (ZnO-C:NW) via a mild C+ ion implantation method. The photoluminescence and magnetic hysteresis loops reveal that the implantation of C reduces the number of intrinsic surface defects and increases the saturated magnetization of ZnO-NW. The interstitial implanted C ions constitute the majority of defects in ZnO-C:NW as confirmed by the X-ray absorption spectroscopic studies. The X-ray magnetic circular dichroism spectra of O and C K-edge respectively indicate there is a reduction in the number of unpaired/dangling O 2p bonds in the surface region of ZnO-C:NW and the C 2p-derived states of the implanted C ions strongly affect the net spin polarization in the surface and bulk regions of ZnO-C:NW. Furthermore, these findings corroborate well with the first-principles calculations of C-implanted ZnO in surface and bulk regions, which highlight the stability of implanted C for the suppression and enhancement of the ferromagnetism of the ZnO-C:NW in the surface region and bulk phase, respectively. |
| 關鍵字 | |
| 語言 | en |
| ISSN | 2045-2322 |
| 期刊性質 | 國外 |
| 收錄於 | SCI Scopus |
| 產學合作 | 國內 國外 |
| 通訊作者 | H. C. Hsueh(薛宏中)*, J. W. Chiou*, and W. F. Pong |
| 審稿制度 | 是 |
| 國別 | GBR |
| 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/987654321/113425 ) |