Effect of swift heavy ions in Ni-Al nanocrystalline films studied by x-ray absorption spectroscopy
學年 96
學期 2
出版（發表）日期 2008-07-01
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 Dong, C. L.; Chen, S. S.; Chiou, J. W.; Chen, Y. Y.; Guo, J. H.; Cheng, H. F.; Lin, I. N.; Chang, C. L.
單位 淡江大學物理學系
出版者 Amsterdam: Elsevier BV
著錄名稱、卷期、頁數 Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy 70(2), pp.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 XANES;Intermetallic alloys;Ni-Al alloys;Swift heavy ions
語言 en
ISSN 1386-1425
期刊性質 國外
收錄於
產學合作
通訊作者
審稿制度
國別 NLD
公開徵稿
出版型式 紙本
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