Stress of needle specimen on the three‐dimensional atom probe (3DAP)
作者： N. Mayama , C. Yamashita , T. Kaito , M. Nojima , M. Owari
DOI: 10.1002/SIA.2905
关键词:
摘要: The three-dimensional atom probe (3DAP) is one of the ways to image materials three-dimensionally on atomic scale. However, some technical issues in 3DAP are still unresolved. One them rupture a specimen that sometimes occurs when atoms field-evaporated at apex needle specimen. This caused by high electric stress around tip way reduce enlarge taper angle In this study, adapting idea 3DAP, we estimated appropriate values not only but also its diameter, length, radius curvature, and distance between local electrode simulation. Furthermore, calculated average value field-induced each plane for z-direction Copyright © 2008 John Wiley & Sons, Ltd.
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