Interaction of H-2( ) molecular beam with thin layer graphene foils
Interaction of H-2( ) molecular beam with thin layer graphene foils
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H-2( )分子束与薄层石墨烯箔的相互作用
DOI：
10.1088/1674-1056/ab33f2
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发表时间：
2019
影响因子：
1.7
通讯作者：
Han Ji Feng
中科院分区：
文献类型：
--
作者：
Li Min;Qu Guo Feng;Wang Yi Zhou;Zhou Zhou Sen;Shi Mian Gong;Zhou Mao Lei;Liu Dong;Xu Zi Xu;Song Ming Jiang;Zhang Jun;Bai Fan;Liao Xiao Dong;Han Ji Feng
用高分辨率静电分析仪研究了MeV H+2分子离子与薄层石墨烯和石墨箔的相互作用。当H+2束穿过单层石墨烯薄膜时，在零度(沿束向)观察到大量的碎片质子，这表明即使在单层石墨烯薄膜中，H+2分子离子的电子也很容易被剥离。在能谱中发现拖尾质子多于前导质子，这意味着在单层石墨烯薄膜中观察到了明显的尾流效应。对于较薄的石墨烯薄膜，尾流质子数与前导质子数之比先随厚度增加而增加，而对于较厚的石墨烯薄膜，则随厚度增加而减小，表明尾迹场对尾迹质子的弯曲效应随厚度的不同而不同。
The interaction of MeV H+ 2 molecular ions with thin layer graphene and graphite foils was studied by using a highresolution electrostatic analyzer. A large number of fragment protons were observed at zero degree (along the beam direction) when the H+ 2 beam was passing through the monolayer graphene foil, which indicates that the electron of the H+ 2 molecular ions can be stripped easily even by the monolayer graphene foil. More trailing than leading protons were found in the energy spectrum, which means significant wake effect was observed in the monolayer graphene foil. The ratio of the numbers of trailing protons over leading protons first increased with the thickness for the much thinner graphene foils, and then decreased with the thickness for the much thicker graphite foils, which indicates that the bending effect of the wake field on the trailing proton varied with the foil thickness.