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:Electronic structure and magnetic properties of Al-doped Fe3O4 films studied by x-ray absorption and magnetic circular dichroism
學年93
學期2
出版(發表)日期2005/02/01
作品名稱Electronic structure and magnetic properties of Al-doped Fe3O4 films studied by x-ray absorption and magnetic circular dichroism
作品名稱(其他語言)
著者Yang, C. K.; Chiou, J. W.; Tsai, H. M.; Pao, C. W.; Jan, J. C.; Ray, S. C.; Yeh, C. L.; Huang, K. C.; Hsueh, H. C.; Pong, W. F.; Tsai, M.-H.; Hsieh, H. H.; Lin, H. J.; Hou, T. Y.; Hsu, J. H.
單位淡江大學物理學系
出版者College Park: American Institute of Physics
著錄名稱、卷期、頁數Applied Physics Letters 86(6), pp.062504(3pages)
摘要The electronic structure and magnetic properties of Al-doped Fe3O4 films at various Al concentrations were investigated by Al and O K-edge x-ray absorption near-edge structure (XANES) and Fe L3,2-edge magnetic circular dichroism (MCD) measurements. The O K-edge XANES spectra reveal that the intensity of O 2p–Fe 3d hybridized states decreases linearly as the Al concentration increases, suggesting that nonmagnetic Al substitution reduces couplings of the O 2p with Fe 3d orbitals. The Fe L3-edge MCD spectra show that the intensities of MCD features decrease as the Al concentration increases, which suggests that Al substitution reduces the magnetic moments of Fe ions. The Fe L3,2 XANES spectra suggest the absence of mixed valence states in agreement with previous x-ray resonance scattering measurements.
關鍵字iron compounds; aluminium; magnetic thin films; ferromagnetic materials; magnetic moments; valence bands; impurity distribution; doping profiles; XANES; impurity states; magnetic circular dichroism; exchange interactions (electron)
語言英文
ISSN0003-6951;1077-3118
期刊性質國外
收錄於
產學合作
通訊作者Pong, W. F.
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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