Transition Metal Silicide Nanowires Growth and Electrical Characterization

We report the characterization of self-assembled epitaxially grown transition metal, Fe, Co, Ni, silicide nanowires （TM-NW） growth and electrical transport properties. NWs grown by reactive deposition epitaxy on various silicon surfaces show a dimension of 10nm by 5nm, and several micrometers in length. NW orientations strongly depend on substrate crystal orientation, and follow the substrate symmetry. By using conductive-AFM （c-AFM）, the electron transport properties of one single NW were measured, the resistivity of crystalline nickel silicide NW was estimated to be 2×10-2Ω＆#12539;cm.     

大学物理课堂与演示实验室远程互动教学的实践

针对目前大学物理进行随堂大型演示实验面临的困难,我们将双向视频系统应用到大学物理课堂教学中,配合大学物理理论教学做好随堂演示实验;充分利用学校的网络教学平台实现理论教学主课堂与演示实验分课堂的远程交互教学有机且有效的结合.通过不断探索演示实验的教学方法,更好地发挥演示实验教学作用,激发学生学习物理的兴趣,提高物理教学质量.