PLASTIC-DEFORMATION OF NANOMETER-SCALE GOLD CONNECTIVE NECKS
PLASTIC-DEFORMATION OF NANOMETER-SCALE GOLD CONNECTIVE NECKS
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DOI：
10.1103/physrevlett.74.3995
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发表时间：
1995-05-15
影响因子：
8.6
通讯作者：
VIEIRA, S
中科院分区：
文献类型：
--
作者：
AGRAIT, N;RUBIO, G;VIEIRA, S
利用扫描力-隧道显微镜研究了金属针尖与基底接触后形成的纳米尺度连接颈的塑性变形。在变形过程中同时测量颈部的作用力和电导，该变形过程在交替的弹性和屈服阶段进行。从这些数据的杨氏模量和屈服应力的颈部估计。这是第一次在实验上定量测量纳米尺寸结构的塑性变形。
A combined scanning force and tunneling microscope is used to study the plastic deformation of a connective neck of nanometer dimensions formed by cohesive bonding between metal tip and substrate after contact. The applied force and conductance of the neck are measured simultaneously during the deformation process, which proceeds in alternating elastic and yielding stages. From these data the Young's modulus and the yield stress of the neck are estimated. This is the first experimental quantitative measurement of plastic deformation in a structure of nanometer size.