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LIU Chun-bao, WANG Zhi-guang, #, WEI Kong-fang, ZANG Hang, YAO Cun-feng, MA Yi-zhun, SHENG Yan-bin, GOU Jie, JIN Yun-fan, A.Benyagoub, M.Toulemonde. Investigation of Intermixing and Phase Change of Ni/SiO2 under Swift Heavy Ion Irradiation[J]. Nuclear Physics Review, 2009, 26(1): 44-47. DOI: 10.11804/NuclPhysRev.26.01.044
Citation: LIU Chun-bao, WANG Zhi-guang, #, WEI Kong-fang, ZANG Hang, YAO Cun-feng, MA Yi-zhun, SHENG Yan-bin, GOU Jie, JIN Yun-fan, A.Benyagoub, M.Toulemonde. Investigation of Intermixing and Phase Change of Ni/SiO2 under Swift Heavy Ion Irradiation[J]. Nuclear Physics Review, 2009, 26(1): 44-47. DOI: 10.11804/NuclPhysRev.26.01.044
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Investigation of Intermixing and Phase Change of Ni/SiO2 under Swift Heavy Ion Irradiation

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  • Ni/SiO2 interface were irradiated at room temperature with 308 MeV Xe ions to 1×1012, 5×1012 Xe/cm2 and 853 MeV Pb ions to 5×1011 Pb/cm2, respectively. These samples were analyzed using Rutherford Backscattering Spectrometry (RBS) and Xray diffraction spectroscopy (XRD), from which the intermixing and phase change were investigated. The obtained results show that both Xe and Pbions could induce diffusion of Ni atoms to SiO2 substrates and result in intermixing of Ni with SiO2. Furthermore, 1.0×1012 Xe/cm2 irradiation induced the formation of NiSi2 and 5.0×1012 Xe/cm2 irradiation created Ni3Si and NiO phases. The diffusion of Ni atoms and the formation of new phase may be driven by a transient thermal spike process induced by the intense electronic energy loss along the incident ion path.
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