教師資料查詢 | 類別: 期刊論文 | 教師: 董崇禮 CHUNG-LI DONG (瀏覽個人網頁)

標題:Electronic structure of Cr doped Fe3O4 thin films by x-ray absorption near edge structure spectroscopy
學年106
學期2
出版(發表)日期2018/02/01
作品名稱Electronic structure of Cr doped Fe3O4 thin films by x-ray absorption near edge structure spectroscopy
作品名稱(其他語言)
著者Chi-LiangChen; Chung-LiDong; KandasamiAsokan; G.Chern; C.L.Chang
單位
出版者
著錄名稱、卷期、頁數Solid State Communications 272, p.48-52
摘要Present study reports the electronic structures of Cr doped Fe3O4 (Fe3-xCrxO4 (0 ≤ x ≤ 3) grown on MgO (100) substrates in the form of thin films fabricated by a plasma–oxygen assisted Molecular Beam Epitaxy (MBE). X-ray absorption near-edge structure (XANES) spectra at Cr & Fe L-, and O K-edges were used to understand the electronic structure: changes in the bonding nature, valence states, and site occupancies. Cr doping in Fe3O4 results in the change of charge transfer, crystal structure, and selective occupation of ions in octahedral and tetrahedral sites. Such change modifies the electrical and magnetic properties due to the covalency of Cr ions. The physical and chemical properties of ferrites are strongly dependent on the lattice site, ion size of dopant, and magnetic nature present at different structural symmetry of the spinel structure.
關鍵字A. Thin films;B.MBE;A.Magnetite;E.X-ray absorption spectroscopy
語言英文(美國)
ISSN
期刊性質國外
收錄於SCI;
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式,電子版
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