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:Influence of transition-metal type and content on local-order properties of Zn1-xMxS (M=Mn,Fe,Co) alloys studied using XANES spectroscopy
學年83
學期1
出版(發表)日期1994/09/01
作品名稱Influence of transition-metal type and content on local-order properties of Zn1-xMxS (M=Mn,Fe,Co) alloys studied using XANES spectroscopy
作品名稱(其他語言)
著者Pong, Way-faung; Mayanovic, R. A.; Wu, K. T.; Tseng, P. K.; Bunker, B. A.; Hiraya, A.; Watanabe, M.
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 (Condensed Matter) 50(11), pp.7371-7377
摘要X-ray-absorption near-edge-structure (XANES) spectra of the diluted-magnetic-semiconductor system Zn1-xMnxS have been measured at the Zn LIII,II edge and of Zn1-xMxS (M=Mn,Fe,Co) at the S K edge using the total-electron-yield mode. The Zn LIII edge results for Zn1-xMnxS show a dramatic reduction in intensity of the first prominent feature, just above the edge, in the XANES spectra. Analysis of the S K-edge XANES spectra for Zn1-xMxS revealed the appearance of a pre-edge peak, having linear x dependence in intensity and assigned to S 1s photoelectron excitations to an empty narrow band of S 3p–M 3d(t2) hybridized antibonding states. The rate of peak intensity with M concentration is associated with differences in the degree of p-d hybridization of states between the transition metal and sulfur. Features above the edge are generally found to decrease in intensity with an increase in transition-metal content in the alloys. The results are consistent with more S 3p–transition metal (M) 3d(t2) hybridized states and less S 3p–Zn 4(s,p) and S 3p–Zn 3d hybridized states becoming available as the transition-metal content increases in the alloys.
關鍵字
語言英文
ISSN1095-3795;0163-1829
期刊性質國外
收錄於SCI
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式紙本;電子版
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