Tracks of 30-MeV C60 clusters in yttrium iron garnet studied by scanning force microscopy
Tracks of 30-MeV C60 clusters in yttrium iron garnet studied by scanning force microscopy
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DOI：
10.1016/j.nimb.2009.02.020
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发表时间：
2009-03-01
影响因子：
1.3
通讯作者：
El-Said, A. S.
中科院分区：
文献类型：
--
作者：
El-Said, A. S.
Y铁石榴石(Y3Fe5O12或YIG)是一种可非晶化的亚铁磁性绝缘体，在磁迹形成和损伤形态方面可能是研究得最好的材料。本文介绍了高能C-60团簇表面损伤的第一次扫描力显微镜(SFM)。用奥赛核物理研究所(IPNO)串列加速器提供的30 MeV C-60团簇离子(动能类似于0.04 MeV/u)，在垂直入射下辐照YIG单晶。SFM的地形图像显示了YIG表面的纳米突起；其中每个山丘都是由一个C-60星团产生的。通过对纳米结构的量纲分析，讨论了阻止功率和沉积能量密度的作用。将C-60团簇形成的山丘与单原子离子形成的山丘进行了比较。(C)2009爱思唯尔B.V.保留所有权利。
Yttrium iron garnet (Y3Fe5O12 or YIG), an amorphizable ferrimagnetic insulator, is probably the best studied material with respect to track formation and damage morphology. This paper presents first scanning force microscopy (SFM) of surface damage induced by energetic C-60 clusters. YIG single crystals were irradiated at normal incidence with 30-MeV C-60 cluster ions (kinetic energy similar to 0.04 MeV/u) provided by the tandem accelerator of the Institute of Nuclear Physics in Orsay (IPNO). The SFM topographic images show nano-protrusions on the YIG surface; where each hillock is generated by one C-60 cluster. The role of stopping power and deposited energy density is discussed in terms of dimensional analysis of the nanostructures. Hillocks created by C-60 clusters are compared with those produced by monatomic ions. (C) 2009 Elsevier B.V. All rights reserved.