A theoretical model on surface electronic behavior: Strain effect

作者：Qin W G; Shaw D^*

来源：Physica B: Condensed Matter , 2009, 404(16): 2247-2250.

DOI：10.1016/j.physb.2009.04.022

• Work function
• Dislocation density
• Strain

Deformation from mechanical loading can affect surface electronic behavior. Surface deformation and electronic behavior can be quantitatively expressed using strain and work function, respectively, and their experimental relationship can be readily determined using the Kelvin probing technique. However, the theoretical correlation between work function and strain has been unclear. This study reports our theoretical exploration, for the first time, of the effect of strain on work function. We propose a simple electrostatic action model by considering the effect of a dislocation on work function of a one-dimensional lattice and further extend this model to the complex conditions for the effect of dislocation density. Based on this model, we established successfully a theoretical correlation between work function and strain.

• 出版日期2009-8-1
• 单位东北电力大学