铝纳米梁的电学特性测试

Electrical Characteristics Testing of Aluminum Nano-Beams

对铝纳米梁进行了力学和电学特性测试.力学测试结果表明,铝纳米梁处于弹性形变区,具有张应力.电学测试结果表明,纳米梁电阻随着扫描次数增加而增加.通过分析电学实验结果可知,扫描次数增加使纳米梁发生塑性形变,并使纳米梁上张应力减小.研究结果表明,纳米梁电阻随着纳米梁张应力增大而减小.

The mechanical and electrical characteristics of Al（aluminum） nano-beams were presented in this paper. The mechanical test result shows that Al nano-beams have elastic tensile stress; while the electrical test result shows that the electric resistance arises with the increase of scan times. By analyzing electrical test restilts, it shows that the increase of scan times lead to plastic deformation and the descending of tensile stress of Al nano-beam. In conclusion, the electric resistance of nano-beam descends when its tensile stress arises.