Determination of Mean Inner Potential by Electron Holography
Along with Electron Dynamic Simulation
WANG Yan-Guo1, LIU Hong-Rong2, YANG Qi-Bin2, ZHANG Ze1
1Beijing Laboratory of Electron Microscopy, Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100080
2Institute of Modern Physics, Xiangtan University, Xiangtan 411105
Determination of Mean Inner Potential by Electron Holography
Along with Electron Dynamic Simulation
WANG Yan-Guo1;LIU Hong-Rong2;YANG Qi-Bin2;ZHANG Ze1
1Beijing Laboratory of Electron Microscopy, Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100080
2Institute of Modern Physics, Xiangtan University, Xiangtan 411105
Abstract： Off-axis electron holography in a field-emission-gun transmission electron microscope and electron dynamic simulation is used to determine the mean inner potential of copper. The phase shift of object wave versus specimen thickness is calculated up to 30 nm using electron dynamic formula, and the sample thickness is decided by match of the experimental and calculated phase shift. Based on the measured phase shift, the calculated mean inner potential of Cu is 21.2 V, which agrees with the reported values within the experimental error.
WANG Yan-Guo;LIU Hong-Rong;YANG Qi-Bin;ZHANG Ze. Determination of Mean Inner Potential by Electron Holography
Along with Electron Dynamic Simulation[J]. 中国物理快报, 2003, 20(12): 2214-2217.
WANG Yan-Guo, LIU Hong-Rong, YANG Qi-Bin, ZHANG Ze. Determination of Mean Inner Potential by Electron Holography
Along with Electron Dynamic Simulation. Chin. Phys. Lett., 2003, 20(12): 2214-2217.
2003, Vol. 20 
