Co纳米线阵列的掠入射中子小角散射研究  

Grazing Incidence Small Angle Neutron Scattering Study of Co Nanowire Array

作　　者：徐新宇 付振东 郝丽杰[1] 马小柏 孙凯[1] 陈东风[1] 刘蕴韬[1] 赵晨博 刘青芳[2] 王建波[2] Vitaliy Pipich 冯尔玺 吴宝虎 XU Xinyu;FU Zhendong;HAO Lijie;MA Xiaobai;SUN Kai;CHEN Dongfeng;LIU Yuntao;ZHAO Chenbo;LIU Qingfang;WANG Jianbo;Vitaliy Pipich;FENG Erxi;WU Baohu(China Institute of Atomic Energy,Beijing 102413,China;Key Laboratory for Magnetism and Magnetic Materials of Ministry of Education,Lanzhou University,Lanzhou 730000,China;Jülich Center for Neutron Science at Heinz Maier-Leibnitz Zentrum,Garching 85748,Germany)

机构地区：[1]中国原子能科学研究院,北京102413 [2]兰州大学磁学与磁性材料教育部重点实验室,甘肃兰州730000 [3]Jülich Center for Neutron Science at Heinz Maier-Leibnitz Zentrum,Garching Germany 85748

出　　处：《原子能科学技术》2020年第12期2454-2460,共7页Atomic Energy Science and Technology

基　　金：中国原子能科学研究院院长基金资助项目(16YZ201809);国家自然科学基金资助项目(11875325,11605292)。

摘　　要：本文采用掠入射中子小角散射(GISANS)技术,研究了沉积在多孔阳极氧化铝(AAO)模板中的Co磁性纳米线阵列的空间结构,利用计算机软件对GISANS实验进行了理论模拟,并与扫描电子显微镜(SEM)观察的结果进行比较。结果表明,GISANS实验结果、GISANS理论模拟结果和SEM实验结果三者相吻合。纳米线直径约为60 nm,纳米线中心平均距离约为121 nm,垂直于样品表面相互平行排列,在样品平面内呈现出二维局域六角有序排布。本工作证明了GISANS实验技术结合计算机理论模拟,是研究纳米线阵列及类似纳米体系的有力手段。Using grazing incidence small angle neutron scattering(GISANS)and scanning electron microscopy(SEM)technologies,the spatial structure of Co magnetic nanowire array deposited in porous anodized aluminum oxide(AAO)template was studied.The theoretical GISANS pattern was simulated by means of the computer software.The result shows that the experimental GISANS result,the simulated GISANS result and the SEM result agree well with each other.The diameter of the nanowire is about 60 nm,and the average distance between the centers of the nanowire is about 121 nm.The nanowires are arranged perpendicularly to the surface of the sample and parallel to each other.It is proved that the GISANS technology combined with computer simulation is a powerful tool for studying nanowire array and similar nanostructure.

关 键 词：掠入射中子小角散射 纳米线 多孔阳极氧化铝模板 

分 类 号：O571.56[理学—粒子物理与原子核物理]