Effect of swift heavy ions in Ni–Al nanocrystalline films studied by X-ray absorption spectroscopy
學年 96
學期 1
出版（發表）日期 2008-01-10
作品名稱 Effect of swift heavy ions in Ni–Al nanocrystalline films studied by X-ray absorption spectroscopy
作品名稱（其他語言）
著者 Tsai, H.-M.; Bao, C.-W.; Chiou, J.-W.; Pong, W.-F.
單位 淡江大學物理學系
出版者 Elsevier BV
著錄名稱、卷期、頁數 Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy Pages 70(2),　p.454–457
摘要 X-ray absorption spectroscopic measurements have been used to compare the electronic structures of swift heavy ions (100 MeV Si ions) irradiated and pristine Ni–Al nanocrystalline films. Results from X-ray diffraction (XRD), X-ray absorption near-edge structure (XANES) spectra at Al K-, and Ni L2,3-edges and extended X-ray absorption fine structure (EXAFS) at Ni K-edges are discussed. The observed XRD peaks indicate the improvement of crystalline nature and Al(1 1 1) clustering after the swift heavy ion interactions. While the XANES spectra at Ni L2,3-edges show decrease in the intensity of white line strength, the Al K-edge shows increase in intensity after irradiation. Above results imply that swift heavy ions induce low Z (i.e., Al) ion mass transport, changes in Al sp-Ni–d hybridization, and charge transfer. EXAFS results show that crystalline nature is improved after swift heavy irradiation which is consistent with XRD results.
關鍵字
語言 en_US
ISSN 1873-3557
期刊性質 國外
收錄於
產學合作
通訊作者 Asokan, K.
審稿制度 否
國別 NLD
公開徵稿
出版型式 ,電子版,紙本
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