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:The key energy scales of Gd-based metallofullerene determined by resonant inelastic X-ray scattering spectroscopy
學年106
學期1
出版(發表)日期2017/08/15
作品名稱The key energy scales of Gd-based metallofullerene determined by resonant inelastic X-ray scattering spectroscopy
作品名稱(其他語言)
著者Shao, Y.-C.; Wray, L.A.; Huang, S.-W.; Liu, Y.-S.; Song, W.; Yang, S.; Chuang, Y.-D.; Guo, J.d; Pong, W.-F.
單位
出版者
著錄名稱、卷期、頁數Scientific Reports 7(1), 8125
摘要Endohedral metallofullerenes, formed by encaging Gd inside fullerenes like C80, can exhibit enhanced proton relaxitivities compared with other Gd-chelates, making them the promising contrast agents for magnetic resonance imaging (MRI). However, the underlying key energy scales of Gd x Sc3−x N@C80 (x  =  1–3) remain unclear. Here, we carry out resonant inelastic x-ray scattering (RIXS) experiments on Gd x Sc3−x N@C80 at Gd N 4,5-edges to directly study the electronic structure and spin flip excitations of Gd 4f electrons. Compared with reference Gd2O3 and contrast agent Gadodiamide, the features in the RIXS spectra of all metallofullerenes exhibit broader spectral lineshape and noticeable energy shift. Using atomic multiplet calculations, we have estimated the key energy scales such as the inter-site spin exchange field, intra-atomic 4f–4f Coulomb interactions, and spin-orbit coupling. The implications of these parameters to the 4f states of encapsulated Gd atoms are discussed.
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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