Zhao Shifeng, Bi Feng, Wan Jian-Guo, Han Min, Song Fengqi, Liu Jun-Ming, Wang Guanghou
National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People's Republic of China.
Nanotechnology. 2007 Jul 4;18(26):265705. doi: 10.1088/0957-4484/18/26/265705. Epub 2007 Jun 5.
Cluster-assembled Tb-Fe nanostructured films were prepared by the low energy cluster beam deposition method. The microstructure, magnetization and magnetostriction were investigated for the films. It is shown that the film is assembled by monodisperse spherical nanoparticles with average diameter of ∼30 nm which are distributed uniformly. The cluster-assembled Tb-Fe nanostructured films exhibit good magnetization and possess giant magnetostriction with saturation value of ∼1060 × 10(-6), much higher than that of the common Tb-Fe films. The origin of good magnetization and giant magnetostriction for the cluster-assembled Tb-Fe nanostructured film was discussed. The present work opens a new avenue to produce the nanostructured magnetostrictive alloy in application of a nano-electro-mechanical system.
采用低能团簇束沉积法制备了团簇组装的Tb-Fe纳米结构薄膜。对薄膜的微观结构、磁化强度和磁致伸缩进行了研究。结果表明，该薄膜由平均直径约为30nm的单分散球形纳米颗粒组装而成，且分布均匀。团簇组装的Tb-Fe纳米结构薄膜表现出良好的磁化强度，并具有约1060×10(-6)的饱和值的巨磁致伸缩，远高于普通Tb-Fe薄膜。讨论了团簇组装的Tb-Fe纳米结构薄膜具有良好磁化强度和巨磁致伸缩的起源。目前的工作为纳米机电系统应用中制备纳米结构磁致伸缩合金开辟了一条新途径。
