教師資料查詢 | 類別: 期刊論文 | 教師: 彭維鋒 Pong, Way-faung (瀏覽個人網頁)

標題:Origin of magnetic properties in carbon implanted ZnO nanowires
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Wang, Y.F.; Shao, Y.C.; Hsieh, S.H.; Chang, Y.K.; Yeh, P.H.; Hsueh, H.C.; Chiou, J.W.; Wang, H.T.; Ray, S.C.; Tsai, H.M.; Pao, C.W.; Chen, C.H.; Lin, H.J.; Lee, J.F.; Wu, C.T.; Wu, J.J.; Chang, Y.M.; Asokan, K.; Chae, K.H.; Ohigashi, T.; Takagi, Y.; Yokoyama, T.; Kosugi, N.; Pong, W.F.
單位
出版者
著錄名稱、卷期、頁數Scientific Reports 8(1), 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
語言英文
ISSN
期刊性質國外
收錄於SCI;
產學合作
通訊作者
審稿制度
國別英國
公開徵稿
出版型式,電子版,紙本
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